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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
- When a charged oil drop moves upwards in an electric field,
- A block slides from an inclination of 45°.If it takes time twice
- If liquid level falls in a capillary then radius of capillary will be
- An object of mass 3kg is at rest. Now a force F=6t² i⃗+4t j⃗ is applied on the object
- If the rise in height of capillary of two tubes is 6.6 cm and 2.2 cm
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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