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Commercial electric motors do not use:...

Commercial electric motors do not use:

A

an electro-magnet to rotate the armature

B

effectively large number of turns of conducting wire in the current carrying coil.

C

a permanent magnet to rotate the armature

D

a soft iron core on which the coil is wound.

Text Solution

Verified by Experts

The correct Answer is:
C
Electro-magnet is used instead of permanent magnet is commerical electric motor
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