In an experiment, a magnet with its mangetic moment along the axis of a circular coil and directed towards
In an experiment, a magnet with its mangetic moment along the axis of a circular coil and directed towards the coil, is withdrawn away from the coil and parallel to itself. The current in the coil, as seen by the withdrawing magnet, is :–
(a) zero
(b) clockwise
(c) anticlockwise
(d) first (a) then (b)
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Correct option (b) clockwise
Explanation:
As magnet is withdrawn from the coil, field into the coil decreases. To increase this field, current induced in the coil must be clockwise as seen by the withdrawing magnet.
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