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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
Options
(a) 2Ω
(b) 8Ω
(c) 12Ω
(d) 16Ω
Correct Answer:
12Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - For a cubic crystal structure which one of the following relations
- A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For a cubic crystal structure which one of the following relations
- A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane
- The energy band gap is maximum in
- A straight conductor 0.1 m long moves in a uniform magnetic field 0.1 T.
- The primary and secondary coil of the transformer have 50 and 1500 turns respectively
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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