In the figure X is a coil wound over a hollow wooden pipe.
A permanent magnet is pushed at a constant speed v from the right into the pipe and it comes out at the left end of the pipe. During the entry and the exit of the magnet, the current in the wire YZ will be from
(A) Y to Z and then Y to Z
(B) Z to Y and then Y to Z
(C) Y to Z and then Z to Y
(D) Z to Y and then Z to Y
Correct Answer : Option (B) Z to Y and then Y to Z
More Questions : The magnetic field due to a small magnetic dipole of dipole moment ‘M’ at a distance ‘r’ from the centre along the axis of the dipole is given by
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