when a wire loop is rotated in a magnetic field,the direction of induced e m f changes once in - Physics - Electromagnetic Induction

Question

when a wire loop is rotated in a magnetic field,the direction of
induced e m f changes once in each a) 1/4 revolution b) 1/2
revolution c) 1 revolution d) 2 revolution

Suraj Raman · Accepted Answer

One has to specify the axis about which it is rotated If it is
rotated about the centre, then it doesn't change If rotated about
the diameter, then it changes

when a wire loop is rotated in a magnetic field,the direction of induced e.m.f. changes once in each a) 1/4 revolution b) 1/2 revolution c) 1 revolution d) 2 revolution