A flat coil is in a uniform magnetic field. The magnetic flux through the coil is greatest when?

Answers

Answer 1

to maximize the magnetic flux through a coil in a uniform magnetic field, the coil should be oriented perpendicular to the field lines.

The magnetic flux through a coil is greatest when the coil is perpendicular to the magnetic field lines. This is known as the maximum or peak flux condition.

When the coil is perpendicular to the magnetic field, the maximum number of magnetic field lines pass through the coil, resulting in the maximum magnetic flux. The magnetic flux is directly proportional to the number of field lines passing through the coil.

If the coil is at an angle to the magnetic field lines, the effective area of the coil perpendicular to the field lines decreases, resulting in a lower magnetic flux.

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Related Questions

You are sitting on a merry-go-round at a distance of 2m from its center. It spins 15 times in 3 min. What distance do you move as you make one revolution? What is your angular speed in RPM? What is your linear speed in meters per SECOND?

Answers

Answer:

A) 12.57 m

B) 5 RPM

C) 3.142 m/s

Explanation:

A) Distance covered in 1 Revolution:

The formula that gives the relationship between the arc length or distance covered during circular motion to the angle subtended or the revolutions, is given as follows:

s = rθ

where,

s = distance covered = ?

r = radius of circle = 2 m

θ = Angle = 2π radians  (For 1 complete Revolution)

Therefore,

s = (2 m)(2π radians)

s = 12.57 m

B) Angular Speed:

The formula for angular speed is given as:

ω = θ/t

where,

ω = angular speed = ?

θ = angular distance covered = 15 revolutions

t = time taken = 3 min

Therefore,

ω = 15 rev/3 min

ω = 5 RPM

C) Linear Speed:

The formula that gives the the linear speed of an object moving in a circular path is given as:

v = rω

where,

v = linear speed = ?

r = radius = 2 m

ω = Angular Speed in rad/s = (15 rev/min)(2π rad/1 rev)(1 min/60 s) = 1.571 rad/s

Therefore,

v = (2 m)(1.571 rad/s)

v = 3.142 m/s

I need help asap. #3, 12points

I need help asap. #3, 12points

Answers

Answer:

-10C= Solid

10C= Liquid

50C= Liquid

90C= Liquid

110C= Gas

120C= Gas

Explanation:

Below 0 degree C (Celsius), water is frozen means it is in the form of ice. After 0 degree, once we keep it in room temperature, the ice starts becoming liquid (water), and once we heat water, after 100 degree C (Celsius) water starts boiling and thus starts entering gaseous state.

A tow rope pulls a skier of mass 75 kg up a hill with a force of 20 N. The skier is moving at constant speed. The hill has an incline of 25 degrees. What is the value of the force of friction on the skier? What is the value of the normal force?

Answers

The magnitude of the frictional force on the skier is 20 N.

The magnitude of the vertical force  of skier is 666.14 N.

What is the frictional force on the skier?

The value of the frictional force on the skier is determined by applying Newton's second law of motion as follows;

F - Ff = ma

where;

F is the applied force in horizontal directionFf is the frictional force m is the mass of the skier a is the acceleration of the skier

At a constant speed, the acceleration, a = 0

F - Ff = 0

F = Ff

20 N =  Ff

The vertical force due to weight of the skier is calculated as follows;

Fₙ = mg cosθ

where;

θ is the angle of inclination of the hill

Fₙ = (75 x 9.8) cos(25)

Fₙ = 666.14 N

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One of the following statements is incorrect. (a) The car traveled around the circular track at a constant velocity. (b) The car traveled around the circular track at a constant speed. Which statement is incorrect and why?

Answers

Answer:

A

Explanation:

It is deemed to be incorrect because velocity deals with displacement. Or in more simple terms, distance in a specified direction.

While moving round the track, the direction keeps changing, so to say and the velocity vector changes constantly.

Speed on the other hand, is a scalar quantity that doesn't bother about nor depends on the direction being taken by the car.

that's all, I hope you understand it all

He nurse educator is demonstrating percussing the seventh right intercostal space at the midclavicular line over the liver. which sound should the students expect to hear?

Answers

The right upper quadrant of the body contains the liver, which would produce a dull percussion noise.

What is midclavicular line?

The midclavicular line is one of the surface reference lines used in the surface anatomy of the thorax.

Midway through the clavicle's body, a parasagittal vertical plane pierces the bone. While the lateral section of the clavicle is situated near to the highest point of the shoulder joint, the head (medial aspect) lies just lateral to the jugular notch of the sternum, a depression in the superior area of the sternal manubrium (the acromioclavicular joint).

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suppose an asteroid orbiting the sun had an orbital period of 7.5 years. what would its orbital radius be?

Answers

Suppose an asteroid orbiting the sun had an orbital period of 7.5 years. 2.72 AU would its orbital radius be

Calculating the problem:

T² = k × R³

T = 7.5 years = 7.5 x 365.25 days/year = 2737.125 days

T = 2737.125 days x 24 hours/day x 60 minutes/hour x 60 seconds/minute = 2.29 x 10⁷ seconds

1 AU is the average distance between the Earth and the Sun.

R³ = T² / k

R = (T² / k)¹/³

R = (2.29 x 10⁷ s)² / k)¹/³

k = 4π² / (6.67 x 10⁻¹¹ m³ kg⁻¹ s⁻² * 1.989 x 10³⁰ kg) = 0.01720209895 x 10¹⁹ m³/s²

R = ((2.29 x 10⁷ s)² / 0.01720209895 x 10¹⁹ m³/s²)¹/³ = 2.72 AU

The amount of time it takes for an astronomical object to complete one orbit around another object is known as the orbital period (also called the revolution period). It typically refers to planets or asteroids that orbit the Sun, moons that orbit planets, exoplanets that orbit other stars, and binary stars in astronomy.

What influences the orbital period?

The distance a planet is from the Sun changes the speed of its orbit. The speed at which a planet moves and the strength of the Sun's gravitational pull on it increase with increasing distance from the Sun. The Sun's gravitational pull is weaker and its orbit moves more slowly the further away it is from the Sun.

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A motor cyclist travelling at 10 ms-1 decelerates at 2 ms-2.(a) How long does he take to come to rest?(b)How far does he travel in coming to rest?

Answers

Answer:

Explanation:

Formula

a = (vf - vi)/t

Givens

a = -2 m/s^2   Note, he is decelerating so the number must indicate he's slowing down. That's why it is minus.

vi = 10 m/s

vf = 0

Solution

-2 m/s^2 = (0 -  10)/t

-2 m/s^2 = -10 /  t                     Multiply both sides by t

-2 m/s^2 * t = - 10 m/s /           Divide by - 2

t = -10 / - 2

t = 5 seconds.

A certain one-dimensional conservative force is given as a function of x by the expression F = -kx^3, where F is in newtons and x is in meters. A possible potential energy function U for this force is

A certain one-dimensional conservative force is given as a function of x by the expression F = -kx^3,

Answers

Answer:

Choice D

Explanation:

F(x) = -kx^3

Integrate F(x) with respect to x:

U(x) = - ∫ F(x) dx

= - ∫ (-kx^3) dx

= k/4 * x^4 + C

C is a constant of integration. Find C by specifying the potential energy at a particular value of x. To make it easy, assume that U = 0  at x = 0:

U(0) = k/4 * 0^4 + C = 0

C = 0

Therefore, the potential energy function for the given force F = -kx^3 is:

U(x) = k/4 * x^4

Choice D:  U = \(\frac{1}{4}\)kx⁴

1. A gas is trapped inside a cylinder by a movable piston. The length of the gas column is 50 cm and the pressure inside the cylinder is P. The piston is pushed in a distance of 30 cm, so that the length of the gas column is now 20 cm. The temperature of the gas does not change. What is the new pressure of the gas? A. 0.6 p B. 0.4 p C. 2.5 p D. 1.5 p ​

Answers

The new pressure of the gas is 2.5 p. The correct answer is option c.

According to Boyle's law "the pressure and volume of a gas are inversely proportional if the temperature is constant".

Therefore, from the above definition we can use the formula

P1V1 = P2V2,

Here P1 is the initial pressure,

V1 is the initial volume,

P2 is the final pressure, and

V2 is the final volume.

In this question,

the initial pressure is P,

the initial volume is \(50 cm^3\),

the final volume is \(20 cm^3\), and

Now we want to find the final pressure P2.

Therefore, we can simply write:

P × 50 = P2 × 20

Solving for P2, we will get:

P2 = P × (50/20) = 2.5 P

Therefore, the answer is (C) 2.5 P.

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If Usain Bolt runs at a speed of 12 m/s for 100 seconds, how far did Usain Bolt run in meters

Answers

The distance covered by Usain Bolt in meters is  1200 meter.

Speed is defined as the distance travelled or covered in a particular time period. Speed is a scalar quantity as it does not specify the direction of motion, whereas velocity is the vector counterpart of speed as velocity specifies the direction of motion of the object or body or anything concerned with the motion.

Speed is given by the equation,

speed= distance traveled/time taken --- equation(1)

so we can calculate distance from equation(1) as ,

distance traveled= speed × time taken --- equation(2)

here,

speed is given as 12 m/s and time taken is given as 100 seconds

Therefore from equation(2)

distance traveled = 12m/s×100s=1200m

that is , the distance covered by Usain Bolt is 1200 meters.

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Please help me :( Thank you!

Please help me :( Thank you!

Answers

Answer:

I believe its C

Explanation:

Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.

Your work will not be submitted to your teacher until you click Submit.

Documents
Lab Report Guide
Lab Report Rubric
File Upload

Answers

To complete the assignment, click the links to open the resources provided. These resources will provide guidance on how to create a lab report and how it will be graded.

What is resources?

Resources are the materials, both physical and intellectual, that are used to produce goods and services. Physical resources include land, natural resources, capital goods, human resources and technological resources. Intellectual resources refer to knowledge or skills that are used in the production process, such as patents, copyrights, inventions, brands and trade secrets.

Once you have created the lab report file(s) and are ready to upload them, click the Add Files button and select each file from your desktop or network folder. Upload each file separately.

Once all the files have been uploaded, click Submit to submit your work to your teacher.

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A hot cube of iron was heated up using 1500 J of thermal energy and was placed in a beaker of water. Before it was heated, the iron cube was 20.0 ˚C. The cube of iron raised the temperature of the water to 45.0 ˚C. If the iron cube has a mass of 133 g, what is the specific heat capacity of iron?

Answers

Answer:

451.13 J/kg.°C

Explanation:

Applying,

Q = cm(t₂-t₁)............... Equation 1

Where Q = Heat, c = specific heat capacity of iron, m = mass of iron, t₂= Final temperature, t₁ = initial temperature.

Make c the subject of the equation

c = Q/m(t₂-t₁).............. Equation 2

From the question,

Given: Q = 1500 J, m = 133 g = 0.113 kg, t₁ = 20 °C, t₂ = 45 °C

Substitute these values into equation 2

c = 1500/[0.133(45-20)]

c = 1500/(0.133×25)

c = 1500/3.325

c = 451.13 J/kg.°C

Why can’t you
feel the effect of the reaction
force when an object falls to
Earth?

Answers

Answer:

Because the Earth is EXTREMELY massive

Explanation:

Tyrell is holding a cup of hot cholate in his hands which cause his hand to feel
warmer. What is happening to the particles in his hands?

Answers

Answer:

When Tyrell's hands get warm the particles in his hands are moving faster or more rapidly.

Explanation:

Please help! the mass of an object is measured on a pan balance with a precision of 0.005 g and the recorded value of 128.01 g. a mass of a second object is measured on a pan balance with a precision of 0.005 kg and a recorded value of 0.13 kg. evaluate the claim that these two objects have different masses.

Answers

Yes, these two objects have different masses.

How can we calculate that this statement is right ?

To calculate the precision of mass we are using the formula,

Precision(P) = \(\frac{m_1}{m_1+\triangle m}\)

Or,\(\triangle\)m=\(\frac{m_1}{P}\)-m₁

For the first case we are given,

m₁= The recorded value of mass

= 128.01 g

P= Precision of the mass

=0.005g

So, according to the formula, \(\triangle\)m will be,

\(\triangle\)m=  \(\frac{128.01}{0.005}\)-128.01

Or,\(\triangle\)m=25,473.99 g

Or,\(\triangle\)m=25.47 Kg

For the first case \(\triangle\)m is 25.47 Kg..

For the second case we are given,

m₁= The recorded value of mass

= 0.13 Kg

P= Precision of the mass

=0.005 Kg

So, according to the formula, \(\triangle\)m will be,

\(\triangle\)m= \(\frac{0.13}{0.005}\)-0.13

Or,\(\triangle\)m= 25.87 kg

For the second case \(\triangle\)m is 25.87 Kg.

For the two cases  \(\triangle\)m has different values, 25.47 Kg≠25.87 Kg.

Therefore we can conclude that, these two objects have different masses.

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a central concept in quantum mechanics is that both matter and are alternate forms of the same entity and therefore both exhibit dual characteristics of particles and of . this model allows a better understanding of the behavior of tiny particles such as electrons.

Answers

Answer:

energy, waves

Explanation:

In quantum mechanics, a central concept is that both matter and energy are alternate forms of the same entity and therefore both exhibit dual characteristics of particles and of waves.

Matter can be defined as anything that has mass and is able to occupy space.

Thus, any physical object or substance that is found on Earth is typically composed of matter.

Similarly, energy is highly affected by the mass of a any physical object or substance just like matter,

Hence, both energy and matter are known to be made up of atoms and as a result of this fact, exhibit dual characteristics of particles and of waves.

A wave can be defined as a disturbance in a medium that progressively transports energy from a source location to another location without the transportation of matter.

In conclusion, this central concept makes it easier for us to better understand the behavior of tiny particles such as electrons.

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a blimp inflated with hydrogen gas (density 0.1kg/m3 ) has a volume of 7500 m3 . what is the buoyant force exerts on the blimp if the density of the air is 1.3kg/m3 ?

Answers

The buoyant force exerted on the blimp is 88,209 N. The buoyant force exerted on the blimp can be calculated using the formula: buoyant force = weight of the displaced air. Since the blimp is filled with hydrogen gas, which has a lower density than the surrounding air, it experiences an upward force known as buoyant force.

The density of hydrogen gas is 0.1 kg/m3, which is much lower than the density of air, which is 1.3 kg/m3. Therefore, the blimp displaces a larger volume of air than its own volume, resulting in an upward buoyant force.

To calculate the buoyant force, we need to find the weight of the displaced air, which can be calculated using the formula: weight = mass x gravity. The mass of the displaced air can be calculated by subtracting the mass of the blimp from the mass of the air displaced by the blimp.

The mass of the blimp can be calculated as:

mass = density x volume

mass = 0.1 kg/m3 x 7500 m3

mass = 750 kg

The mass of the air displaced by the blimp can be calculated as:

mass = density x volume

mass = 1.3 kg/m3 x 7500 m3

mass = 9750 kg

Therefore, the mass of the displaced air is 9750 kg - 750 kg = 9000 kg.

The weight of the displaced air can be calculated as:

weight = mass x gravity

weight = 9000 kg x 9.81 m/s2

weight = 88,209 N

Therefore, the buoyant force exerted on the blimp is 88,209 N.

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At t = 3 seconds, what is the velocity of the object

At t = 3 seconds, what is the velocity of the object

Answers

Answer:

NO ANSWER

Explanation:

there is no tragectory or diagram given

WHICH OBJECT?

You decide to "go green" and use an exercise bike to power your home appliances. Assume that your exercise bike is rigged to generate electrical power with 60% efficiency. In other words, only 6/10 of the power you develop
can be used to store electrical energy for later use. Consider your 3500-Watt central AC unit. You need to run this unit for 4 hours each day during the summer. If you can develop a sustained power of 300 Watts on your exercise bike, how long would you have to work out just to keep the AC
running on a summer day?

Answers

The amount of time required to generate energy on the exercise bike is almost impractical, and other sources of energy should be considered.

Let's start with calculating the amount of energy that the AC unit consumes in a day.

Power = Voltage x Current

The power consumption of the AC unit is 3500 Watts.

Time = Power / Voltage x Current (Ohm's Law)

Assuming that your home uses 120 volts AC, the amount of current needed is as follows:

Current = Power / Voltage

= 3500 W / 120 V

= 29.16 A.

The time required to operate the AC unit for four hours per day is:

Time = Power / Voltage x Current

= 3500 W x 4 hr / 120 V x 29.16 A

= 12 hours.

Now, if you can generate a consistent power of 300 watts on the exercise bike, the amount of time you'd need to work out each day to keep the AC unit running for four hours would be:

Time required for the exercise bike = Time for AC Unit x (Power required by AC unit / Power generated by exercise bike)

Time required for the exercise bike = 4 hours x (3500 W / 300 W)

Time required for the exercise bike = 46.7 hours.

Using an exercise bike to generate electricity is a great idea, but it would be difficult to generate enough energy to keep large home appliances running, such as a central AC unit.

In this case, the amount of time required to generate energy on the exercise bike is almost impractical, and other sources of energy should be considered.

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Predict the directions of the longshore current and beach drift in the figure shown at right.
Longshore current to the left (blue) and beach drift to the right (red)
Longshore current to the right (red) and beach drift to the left (blue)
Both to the left (blue)
Both to the right (red)

Answers

Based on the direction of the arrow indicating the prevailing wind direction (towards the right), it is likely that the longshore current will be flowing to the left (blue) and the beach drift will be moving to the right (red).

Therefore, the correct answer is Longshore current to the left (blue) and beach drift to the right (red).
to predict the directions of the longshore current and beach drift in the figure shown, we must consider the following terms: longshore current and beach drift.

Since the figure is not provided, I can only explain the concepts and how to determine the direction for each:

1. Longshore current: It is the movement of water parallel to the shoreline, caused by the waves breaking at an angle. To determine the direction, observe which way the waves are breaking and moving along the shore.

2. Beach drift: Also known as littoral drift, it is the movement of sand and sediment along the shoreline, caused by the longshore current. To determine the direction, observe the direction of the longshore current, as the sand and sediment will follow the same path.

Once you have the figure, you can apply these concepts to predict the directions of the longshore current and beach drift.

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_____ is a technique that has been used to temporarily disturb brain area functioning in humans.a. Lesioningb. Ablationc. Transcranial magnetic stimulationd. Orbital magnetic gyration

Answers

Transcranial magnetic stimulation (TMS)  is a technique that has been used to temporarily disturb brain area functioning in humans

TMS is a technique that has been used to temporarily disturb brain area functioning in humans. It involves the use of magnetic fields to stimulate or inhibit nerve cell activity in the brain.

TMS is used to study brain function, treat medical conditions such as depression and obsessive-compulsive disorder, and develop new treatments for neurological disorders.  

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a) How far did the vehicle travel in total? ​
I need help on how to count each distance please

a) How far did the vehicle travel in total? I need help on how to count each distance please

Answers

The total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m

V = d / t

V = ( u + v ) / 2

V = Average Speed

d = Distance

t = Time

u = Initial velocity

v = Final velocity

During the first 0.5 s, u = 0 and v = 1 m / s.

d = ( 0 + 1 ) * 0.5 / 2

d = 0.25 m

During the next 0.5 s, u and v are equal meaning constant velocity ( V = 1 m / s ).

d = 1 * 0.5

d = 0.5 m

During the next 1 s, u = 1 m / s and v = 1.5 m / s.

d = ( 1 + 1.5 ) * 1 / 2

d = 1.25 m

During the next 2.5 s, u and v are equal meaning constant velocity ( V = 1.5 m / s ).

d = 1.5 * 2.5

d = 3.75 m

During the next 0.5 s, u = 1.5 m / s and v = 0.

d = ( 1.5 + 0 ) * 0.5 / 2

d = 0.375 m

Total distance travelled is the sum of all the individual distances calculated.

Total distance travelled = 0.25 + 0.5 + 1.25 + 3.75 + 0.375

Total distance travelled = 6.125 m

Therefore, the total distance travelled during the vehicle's journey as found from the speed-time graph is 6.125 m

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1.A Radio station broadcasts modern song on medium wave 350 Hz every day at ten o’clock in the morning. The velocity of radio wave is 3X108 ms-1. The wavelength of another wave created in water is one percent of the radio wave and the velocity of sound in water is 1450 ms-1.
How many times of the frequency of the radio wave that of the wave created in the water? Analyze mathematically.

Answers

Answer:

\(ans \: = \boxed{{4.8 \times 10}^{ - 4} Hz}\)

Explanation:

\(given \to \\ f_{r} = 350 \: \\ v_{r} = {3 \times 10}^{8} \\ but \to \\ v = f \gamma \to \: \gamma = \frac{v}{f} : hence \to \\ \gamma _{r} = \frac{v_{r}}{f_{r}} = \frac{3 \times 10^{8} }{350} = \boxed{857,142.85714 \: m}\\ therefore \to \\ given \to \\ f_{w} = water \: frequency = \: \boxed{ ?}\: \\ v_{w} = 14 50 \\ but \to \\ v = f \gamma \to \: \gamma = \frac{v}{f} : hence \to \\ \gamma _{w} = \frac{v_{w}}{f_{w}} = \frac{1}{100} \times \gamma _{r} = \frac{1}{100} \times 857,142.85714 \\\gamma _{w} = \boxed{8,571.4285714 \: m} : hence \to \: \\ f_{w} = \frac{v_{w}}{ \gamma _{w}} = \frac{1450}{8,571.4285714} = \boxed{0.1691666667} \\ if \: the \: number \: of \: times = \boxed{ x} \\ f_{r} (x)=f_{w} \\ (x) = \frac{f_{w}}{f_{r}} = \frac{0.1691666667}{350} = 0.0004833333 \\ hence \to \\ the \: frequency \: of \: the \: radio \: wave \: is \to \: \boxed{{4.8 \times 10}^{ - 4} }\: \\ that \: of \: the \: wave \: created \: in \: the \: water.\)

♨Rage♨

11. In the original Ghostbusters, when asked by Dr. Peter Venkman what would happen if they crossed the streams from their proton packs, Dr. Egon Spengler responded, "It would be bad." The same thing could reasonably be said about _________ Specifically, the reason for this is due to violation of the assumption of _____________

Answers

The same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

Let us understand what these terms mean:

Multicollinearity

In statistical analysis, multicollinearity is the high correlation among predictors in a regression model. It is problematic because of its adverse effects on the model, including making it difficult to determine the effect of an independent variable, coefficients becoming insensitive to small changes in the model, and reducing the reliability of the model.

Independent Predictors

In regression analysis, independent predictors are those variables that contribute to the prediction of the dependent variable or outcome, and their inclusion in the model improves the accuracy of the prediction of the model.

In a regression model, it is an assumption that predictors are independent, which means that the predictors have little to no correlation with each other. If this assumption is violated, it is known as multicollinearity.

Therefore, the same thing could reasonably be said about multicollinearity. Specifically, the reason for this is due to the violation of the assumption of independent predictors.

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What was the problem with the lightbulbs in the study?

A. The lightbulbs were exploding because the current was too high.
B. The lightbulbs were burning out too quickly because the current
was too high.
C. The lightbulbs did not work at all because the current was too low.
D. The lightbulbs were not bright enough because the current was
too low

Answers

Answer:

D. The lightbulbs were not bright enough because the current was

too low

Answer:

A. the lightbulbs were exploding because the current was too high.

Explanation:

a p e x

The diagram shows a transistor used in a circuit. The transistor in the circuit is used to

The diagram shows a transistor used in a circuit. The transistor in the circuit is used to

Answers

The (NPN) transistor in this circuit is used to switch a current.  When it  switches current ON ... acting like a closed switch ... the light goes on.

It's kind of mystifying WHY all of this technological complexity is necessary.  There's already a switch in the circuit ... (the two little circles above the 1K resistor in the base circuit with the tilted line between them).  That switch could just as well be used, in place of the transistor, to directly switch the current through the light.  Why use one switch to control a transistor to make it behave like another switch ? ?

The only actual necessity for doing this that makes sense is if the switch in the base circuit is a tiny low-power switch, and the transistor is a big moose high-power transistor, controlling a high-current, multi-kilowatt searchlight.

A place you might actually find an application like this would be in your car.  A small current through the ignition switch behind the key is used to turn on a high-power transistor under the hood, which controls the huge current to the starter motor.  That way, they avoid running a 100-Ampere cable in and out of the ignition switch, and needing a several-hundred-Ampere switch in the steering column behind the key.

The diagram shows a transistor used in a circuit. The transistor in the circuit is used to Switch current. Hence option A is correct.

What is transistor ?

The definition of the Transistor is in name itself, it is the transfer of resistance. it has three terminals collector, base and emitter. Emitter is highly impured which emits the charge charrier. Collector is moderately impured which collects charge carrier and Base which is lightly impured which biases the charge carrier. It is connected in common base, common emitter and common collector mode. Common emitter mode is widely used for amplification and switch purpose.

To use transistor as a switch emitter is grounded and collector is at positive potential. When voltage at the base exceed the cut off voltage(0.7 V for silicon), it drives the current from collector to emitter and whatever instrument is connected to it gets on.

In this figure transistor is connected in common emitter mode. when current given to the base it biases the circuit, current gets start to flow from the point of 6V to emitter which at ground. Hence light bulb glows.

when base is open or no voltage is given to it. transistor will be in off state, no current flows from collector to emitter and light bulb will be off state.

Hence option A is correct

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HELP, finals are due

Answers

I understand that finals can be a stressful and overwhelming time. However, it's important to stay calm and focused so you can do your best. One of the most important things you can do is to start studying early and make a plan. Break down your study material into manageable chunks and set goals for each study session. Be sure to give yourself breaks and take care of your physical and mental health during this time.

Another helpful tip is to engage in active studying techniques, such as practicing with past exams or reviewing notes with a study group. This will help you better retain the information and identify any areas that need more attention. Additionally, try to stay organized by keeping track of deadlines and creating a schedule for each task. This can help you avoid last-minute cramming and reduce stress.

Lastly, remember to prioritize self-care during this time. Get enough sleep, eat healthy, and engage in stress-reducing activities such as meditation or exercise. It's important to take care of your well-being so you can perform your best during finals.

In summary, stay calm, make a plan, engage in active studying, stay organized, and prioritize self-care. Good luck with your finals!

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find the yielding factor of safety np, the load factor nl, and the joint separation factor no. the yielding factor of safety np is . the load factor nl is . the joint separation factor no is .

Answers

The yielding factor of safety (np), the load factor (nl), and the joint separation factor (no), you'll need to know the relevant formulae and input values for the specific problem you're working on. Since you didn't provide any specific data.

1. Yielding Factor of Safety (np): This is the ratio of the material's yield strength to the applied stress. To calculate np, use the formula:

  np = Yield Strength / Applied Stress

2. Load Factor (nl): This is the ratio of the actual load on a structure to the maximum allowable load. To calculate nl, use the formula:

  nl = Actual Load / Maximum Allowable Load

3. Joint Separation Factor (no): This is the ratio of the force required to separate a joint to the applied force on that joint. To calculate no, use the formula:

  no = Force Required to Separate / Applied Force

Once you have the required input values, you can plug them into the respective formulae to find the yielding factor of safety (np), the load factor (nl), and the joint separation factor (no).

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Acceleration is greatest for a satellite in elliptical orbit when it is
farthest from Earth.
closest to Earth.
same at both places

Answers

Acceleration is greatest for a satellite in an elliptical orbit when it is closest to Earth.

According to Kepler's second law, a satellite in an elliptical orbit sweeps out equal areas in equal time intervals. This means that the satellite covers more distance in a given time when it is closer to Earth.

The acceleration of a satellite in orbit is determined by the gravitational force exerted by Earth. Since gravitational force decreases with distance, the satellite experiences a stronger gravitational force when it is closer to Earth. As a result, the acceleration of the satellite is greatest when it is closest to Earth.

Therefore, the statement "Acceleration is greatest for a satellite in an elliptical orbit when it is closest to Earth" is correct.

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