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When the plane of the armature of an a.c...

When the plane of the armature of an a.c. generator is parallel to the field in which it is rotaing

A

magnetic flux is zero

B

emf is maximum

C

magnetic flux is maximum

D

both magnetic flux and emf are zero

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic flux, `phi_B = BA cos theta`
Induced emf, `epsilon = BA sintheta`
Here `theta = 0^@`
`:.` Magnetic flux is maximum and induced emf is zero.
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