Math miscellaneousHard

Question

A wire loop is rotated in magnetic field. The frequency of change of direction of the induced e.m.f. is :

Options

A.Six times per revolution
B.Once per revolution
C.twice per revolution
D.four times per revolution

Solution

While one whole revolution Magnetic flux will initially change in one direction rotating it to 1800. negative change will occur in another 1800 rotation.

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