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In an electric motor, the direction of c...

In an electric motor, the direction of current in the coil changes once in each :

A

two rotations

B

one rotation

C

half rotation

D

one-fourth rotation

Text Solution

Verified by Experts

The correct Answer is:
C
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  7. A current flows in a wire running between the S and N poles of a magne...

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  8. A electric motor is a device which transforms :

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  12. Which way does the wire in the diagram below tend to move ?

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  13. Name the derive which converts mechanical energy into electric energy.

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  15. Name the phenomenon which is made use of in an electric generator.

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  16. Name the rule which gives the direction of induced current?

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  17. What condition is necessary for the production of current by electroma...

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  19. What is the function of brushes in an electric generator ?

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