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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 charged particle of mass m and charge q moves along a circular path of radius
- Two lines of force due to a bar magnet
- In Young’s experiment, the third bright band for light of wavelength 6000Å
- If a solid ball of metal has a concentric spherical cavity with in it if the ball
- A bottle full of water in a space ship at 30⁰C is carried on the moon.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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