How should the drift velocity change to maintain i

Assignment Help Physics
Reference no: EM13837371

A conductor with diameter D carries a current I, with positive charge carriers +q and carrier density n. If the diameter were increased by a factor of 3, keeping +q  and n constant, how should the drift velocity change to maintain I ?

     A. increase by a factor of 3

     B. increase by a factor of 9

     C. decrease by a factor of 3

     D. decrease by a factor of 9

 

 

Reference no: EM13837371

Questions Cloud

Rise in price level that leads to change in interest rate : A rise in the price level that leads to a change in the interest rate, and therefore to a change in the quantity of aggregate demand, will cause:
Explain how a shock wave is generated : Explain how a shock wave is generated OR discuss the Doppler effect and a practical application which utilizes this phenomena. Please remember that your post must be a substantive answer (250-word).
Developing theories about behavior : Developing theories about behavior
Determine the lowest rental rate that the company should use : An equipment rental firm purchased a new scissor lift to add to its rental fleet. The scissor lift cost $18,000 and is expected to have a useful life of 4 years. The salvage value at the end of the lift's useful life is estimated to be $4,000. determ..
How should the drift velocity change to maintain i : A conductor with diameter D carries a current I, with positive charge carriers +q and carrier density n. If the diameter were increased by a factor of 3, keeping +q  and n constant, how should the drift velocity change to maintain I ?
What is the test statistic for the null hypothesis : What is the test statistic for the null hypothesis that mu=10 when the point estimate is 13 and the sample standard deviation is 2 and the sample size is 17.
What do you mean by social media marketing : What do you mean by Social media marketing? What is its impact on the current market scenario? Elaborate with examples
The current of an ideal p-n junction under illumination : The current of an ideal p-n junction under illumination can be described by: J(V)=J0(eqVkT-1)-Jph
What could Government do to increase consumer spending : If the economy is operating at a point less than full employment (as it is now), what would we want to see happen to GDP? For right now, let's just look at the C (consumption) component of our GDP equation. What would we want to see happen to consume..

Reviews

Write a Review

Physics Questions & Answers

  Determine what is the speed of the satellite

A satellite is in a circular orbit around the earth. The period of the satellite is 22 hour.  Determine what is the speed of the satellite

  What resistance should the wire have

The wire in a 150 W aquarium heater has a diameter of 0.12 mm and is made of iron, What resistance should the wire have while the heater is operating

  Calculate the impulse given to the bike and rider

A bicycle rider ( mass of bike and rider is 85kg ) travelling eastat 23ms^-1 changes its velocity to 23ms^-1south in 5 seconds. calculate the acceleration. calculate the change in momentum. calculate the impulse given to the bike and rider

  Small car is pushing larger truck that has dead battery

A small car is pushing a larger truck that has a dead battery. The mass of the truck is twice as large as the mass of the car. At one instant of time the truck and car both have an acceleration of 3.5 m/s2.

  What is the current and what is the dissipated power

A typical lightbulb in your house is rated 75 W, which means that the bulb dissipates 75 Wwhen connected to a DC voltage of 110 V. What is the current?

  What is the rotational inertia of the pulley

A 2.93 kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 9.83 kg cylindrical pulley, What is the rotational inertia of the pulley

  Calculate the angular acceleration as a function of time

A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 5.45rad/s and? = 0.835 rad/s3. Calculate the angular acceleration as a function of time

  Determine focal length must the objective have

A compound microscope has a barrel whose length is 16.4 cm and an eyepiece whose focal length is 1.7 cm. What focal length must the objective have so the angular magnification of the microscope is -250

  Difference among starting point and top point of trajectory

On planet Tehar, the free-fall acceleration is the same as that on Earth; however there is also a strong downward electric field that is uniform close to the planet's surface. A 2.01 kg ball having a charge of 5.04 µC is thrown upward at a speed of 2..

  Determine frictional force was applied by the brake pad

A uniform 2.15- kg spinning disk with a radius of 0.233 m is brought to rest by a brake-pad pressed against the side 0.149 m from the rotation axis. What frictional force was applied by the brake pad

  Calculate the change in exergy of the contents

A constant-pressure insulated piston-cylinder device contains 1.7 kg of saturated liquid-vapor mixture of water at 150 kPa with an initial quality of 0.2. Calculate the change in exergy of the contents in kJ

  Find the magnification of the image

A convex mirror has a focal length of magnitude 7.63 cm. Find the magnification of the image.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd