Suppose you are looking at two current loops in the plane of the page as shown i

Question

Suppose you are looking at two current loops in the plane of the page as shown in the figure below. When switch S is thrown in the left-hand coil, a clockwise current begins.

(a) What is the direction of the induced current in the right loop when the left loop turns on?

(b) What is the direction of the induced current in the right loop if it is quickly pulled horizontally to the right?

Suppose the right-hand loop left-hand loop. The switch in the used a long time when the switch ted. What happens in this case? side has a resistance of 6.10 Ohm. magnetic field, with its plane per-oved from the field in 40.0 ms. dissipated in this process. is rated at 45 W hut requires

Explanation / Answer

(a) The current will also be clockwise, because the magnetic flux(out of the page) through the right loop has increase from 0 to some value, so the current through the right loop must flow in such a way as to counteract this increase in flux.

(b) The current must be counterclockwise, so that it can counteract the decrease in flux as the right loop moves away from the left loop.

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