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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.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body A experiences perfectly elastic collision with a stationary body B
- A satellite S is moving in an elliptical orbit around the earth. The mass
- A person has a minimum distance of distinct vision as 50 cm. The power of lenses
- A parallel beam of fast moving electrons is incident normally on a narrow slit.
- A metal wire of circular cross-section has a resistance R₁. The wire is now stretched
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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