An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the…
Physics · Class 12 · CBSE — Current Electricity
An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the Efficiency be 40%, then the resistance of armature is:
- 2 \(\Omega\)
- 8 \(\Omega\)
- 12 \(\Omega\)
- 16 \(\Omega\)
Answer
(C) 12
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