Question

A circular loop with 50 coils is pulled (to the right) from an external magnetic field...

A circular loop with 50 coils is pulled (to the right) from an external magnetic field of 0.8 T into the page. At t=0 the right edge of the loop is at the right edge of the magnetic field. After 0.250 seconds the loop has moved completely out of the magnetic field. Diameter of the coil is 10 cm

  1. Find the rate of change in flux through one loop as the loop if the loop is pulled out of the magnetic field.
  1. If the loop contains 50 coils what is the induced emf in the loop?
  1. What is the induced current in the coil if the total resistance of the loop is 25 Ω ?
  1. What is the direction of the current induced in the loop? (Hint: Use Lenz’s law to find the direction of the induced magnetic field, then find the current direction needed to produce that magnetic field.
  1. How much energy is dissipated in the loop?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A circular loop in the plane of the paper lies in a 0.75 T magnetic field...
A circular loop in the plane of the paper lies in a 0.75 T magnetic field pointing into the paper. The loop’s diameter is changed from 20.0 cm to 6.0 cm in 0.50 s. Determine the direction of the induced current and justify your answer. Determine the magnitude of the average induced emf. If the coil resistance is 2.5 Ω, what is the average induced current?
A conducting loop has a magnetic flux through it. If the loop is rotated will the...
A conducting loop has a magnetic flux through it. If the loop is rotated will the flux through the loop change? Yes, if the rotation axis is not parallel to the magnetic field Only of the rotation axis is parallel to the magnetic field Yes, for any rotation axis Not enough information 2. A bar magnet is held stationary inside a coil of wire that is connected to a meter. What can be said about the current in the coil?...
17.1) Helmholtz coils The magnetic field on the axis of a circular loop of wire is...
17.1) Helmholtz coils The magnetic field on the axis of a circular loop of wire is not very uniform (in fact, we showed that the field strength decreases as 1/r3 ). But, with two such coils, one can produce a relatively uniform field in a small neighborhood. Consider two parallel circular coils of radius a, centered on the y-axis. One coil is in the y = 0 plane, and the other is in the y = d plane. Assume that...
A circular loop in the plane of the paper lies in a 0.65 T magnetic field...
A circular loop in the plane of the paper lies in a 0.65 T magnetic field pointing into the paper. If the loop's diameter changes from 19.4 cm to 7.2 cm in 0.15 s , what is the direction of the induced current? What is the magnitude of the average induced emf? If the coil resistance is 3.3 ? , what is the average induced current?
A magnetic field, strength 3T, has a direction out of the page. A loop of wire...
A magnetic field, strength 3T, has a direction out of the page. A loop of wire sits in the field and on the plane of the page (area vector of loop is out of page). The loop is much smaller than the extent of the field. The magnetic field starts to slowly change at a rate of -0.0001T/s. Looking down on the loop, which statement is correct? A. Magnetic flux out of page decreasing; anti-clockwise current induced in loop B....
The magnetic field perpendicular to a circular wire loop 8.0cm in diameter is changed from 0.70T...
The magnetic field perpendicular to a circular wire loop 8.0cm in diameter is changed from 0.70T toward the observer to 0.34T away from you in 160 milliSeconds. Q1. Calculate the magnitude of the induced EMF (during the change in B ) and determine what direction will the induced current flow during the change in B?   Will it be CW or CCW as you see it? a) The initial Flux is: b) The final Flux is: c) The induced EMF is:...
The component of the external magnetic field along the central axis of a 49 turn circular...
The component of the external magnetic field along the central axis of a 49 turn circular coil of radius 41.0 cm decreases from 1.90 T to 0.700 T in 3.40 s. If the resistance of the coil is R = 7.50 Ω, what is the magnitude of the induced current in the coil? magnitude:__________ A What is the direction of the current if the axial component of the field points away from the viewer?
A circular loop in the plane of a paper lies in a 0.75 TT magnetic field...
A circular loop in the plane of a paper lies in a 0.75 TT magnetic field pointing into the paper. The loop's diameter changes from 20.5 cmcm to 6.4 cmcm in 0.46 ss . What is the magnitude of the average induced emf? What is the average induced current if the coil resistance is 4.3 Ω?
6: A single-turn circular loop of wire rests flat on this page. A magnetic field is...
6: A single-turn circular loop of wire rests flat on this page. A magnetic field is directed perpendicular to this page pointing outwards (towards you). When the magnetic field strength increases from 3.2 T to 6.5 T in 0.026 seconds, a 1 V emf is induced in the coil. a) Calculate the radius of the loop. b) State the direction of the induced current and briefly explain how you arrived at your answer.
A circular loop in the plane of the paper lies in a 0.78 T magnetic field...
A circular loop in the plane of the paper lies in a 0.78 T magnetic field pointing into the paper. A) What is the magnitude of the average induced emf? Answer in V. B) If the coil resistance is 4.3 ohm , what is the average induced current? Answer in A