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An electric motor runs a D.C. source of ...

An electric motor runs a `D.C.` source of e.m.f. `200 V` and draws a current of `10A`. If the efficiency is `40%`, then ressistance of the armature is:

A

2 W

B

8 W

C

12 W

D

16 W

Text Solution

Verified by Experts

The correct Answer is:
C
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