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In an A.C. generator, when the plane of ...

In an A.C. generator, when the plane of the armature is perpendicular to the magnetic field

A

both magnetic flux and emf are maximum

B

both magnetic flux and emf are zero

C

both magnetic flux and emf are half of their respective maximum values

D

magnetic flux is maximum and emf is zero

Text Solution

Verified by Experts

The correct Answer is:
D
Magnetic flux, `phi_(B)=BA cos theta`
Induced emf, `epsilon = BA sin theta`
Here, `theta = 0^(@)`
`therefore` Magnetic flux is maximum and induced emf is zero.
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DISHA PUBLICATION-ELECTROMAGNETIC INDUCTION -EXERCISE - 1 : Concept Builder
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