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Electromagnetic induction problem ..

by Xaza
Tags: electromagnetic, induction
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Xaza
#1
Nov25-11, 09:21 AM
P: 2
1. The problem statement, all variables and given/known data



What is the direction of current in ring 2 if :

a) ring 2 moves towards ring 1
b) ring 2 moves away ring 1


3. The attempt at a solution

I used Fleming right hand rule but i'm not sure if it is true,

a) the direction same as ring 1
b) the opposite of ring 1
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Daniiel
#2
Nov25-11, 09:45 AM
P: 125
So the by faradays law the change in the system will induce a current which opposes the change, so when you move the first ring closer, it will produce a current in the opposite direction to loop so that loop 2 is pushed back to its initial position.

And if loop 2 is moved away from loop 1 a current will be produced in the same direction as loop 1 so loop 2 is pull back towards loop 1.

I'm pretty sure thats right

have a look at the first and lasts posts

http://www.physicsforums.com/showthread.php?t=552166
Xaza
#3
Nov25-11, 12:32 PM
P: 2
Quote Quote by Daniiel View Post
So the by faradays law the change in the system will induce a current which opposes the change, so when you move the first ring closer, it will produce a current in the opposite direction to loop so that loop 2 is pushed back to its initial position.

And if loop 2 is moved away from loop 1 a current will be produced in the same direction as loop 1 so loop 2 is pull back towards loop 1.

I'm pretty sure thats right

have a look at the first and lasts posts

http://www.physicsforums.com/showthread.php?t=552166
Thank you very much Daniiel, you helped me alot


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