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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
- The primary of a transformer when connected to a dc battery of 10 volt draws a current
- In nuclear fusion, two nuclei come together to form a large nucleus.
- A car of mass m is moving on a level circular track of radius R
- If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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