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Question
A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then ____________.
Options
only a current will be induced in the coil
only e.m.f. will be induced in the coil
an e.m.f. and a current both will be induced in the coil
neither e.m.f. nor current will be induced in the coil
MCQ
Fill in the Blanks
Solution
A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then neither e.m.f. nor current will be induced in the coil.
Explanation:
No e.m.f. or current is induced in the coil since the current through it is continuous and there is no relative motion between the magnet and the coil.
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