Suppose you are looking along a line through the centers of two circular (but se

Question

Suppose you are looking along a line through the centers of two circular (but separate) wire loops, one behind the other. A battery is suddenly connected to the front loop, establishing a clockwise current.

(a) Will a current be induced in the second loop?
(b) If so, when does this current start?
(c) When does it stop?
(d) In what direction is this current?
(e) Is there a force between the two loops?
(f) If so, in what direction?

I have already gotten a, b, and c, I just keeping getting confused with direction of induced currents and if forces are involved.

Explanation / Answer

(d)

As soon as we connect the front loop with the battery, the current rises in it and the flux associated with the second loop increases which is opposed by inducing a current in it. So the current in the loop is in the counter-clockwise direction.

(e)

Yes, there is a force between the loops.

(f)

Repulsive

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