Questions
A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about its axis, then :
detailed solution
Correct option is B
Magnetic flux linked with the coil does not change if magnet is rotated about it's own axis, emf does not induced. So induced current is zero.Talk to our academic expert!
Similar Questions
A loop, having area 20cm2, is made of thin copper wire. If is placed in a uniform magnetic field of induction 1.5 Tesla with its plane perpendicular to the field. If area of the loop increases to 30 cm2 in 0.5 second, average emf induced in the loop is
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