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The potential across a generator is 125V...

The potential across a generator is 125V when it is delivering 10A. When it delivers 30A the potential is 120V. What are the resistance of armature and induced e.m.f. ?

A

`5 Omega`, 127.5 V

B

`0.25 Omega`, 127.5 V

C

`2.5 Omega`, 120V

D

`5 Omega`, 130V.

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