A magnet is moved towards the coil (a) quickly and (b) slowly, and then the work done is
equal in both cases
does not depend on the motion of the magnet.
smaller in case (a)
larger in case (a)
This is because when the magnet is moved quickly, opposing emf induced in the coil will be more.
A magnet is moved towards a coil (i) quickly (ii) slowly, then the induced charge is