A coil of insulate copper wire is connec...

A coil of insulate copper wire is connected to a galvanometer. What will happen if a bar magnet is (i) pushed into the coil, (ii) withdrawn from inside the coil, (iii) held stationary inside the coil ?

If `phi`=0, E mast be zero

If `phi` not equal to 0, E cannot be zero

If E is not zero, `phi` may or may not be zero

All of these

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