Q.

A magnet is brought towards a coil a) quickly, b) slowly, then the emf induced will be

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a

More in first case / less in second case

b

More in first case / Equal in both the cases

c

Less in first case / More in second case

d

Less in first case / equal in both cases

answer is A.

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Detailed Solution

The Induced emf is equal to the rate of change of magnetic flux so we get induced emf is more in first case and less in second case

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