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In the following diagram an arrow shows ...

In the following diagram an arrow shows the motion of the coil towards the bar magnet.
(1) State in which direction the current flows, A to B or B to A ?
(2) Name the law used to come to the conclusion.

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(1) the magnitude of e.m.f. applied in the primary coil.
(2) the number of turns in the coil.
(1)
Current flows from A to B as the coil moves towards the magnet and induced e.m.f. always opposes the motion.
(2) Lenz.s law
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