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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: - Which of the following is an example of ideal black body?
- Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
- Two closed pipes produce 10 beats per second when emitting their fundamental nodes.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is an example of ideal black body?
- Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
- Two closed pipes produce 10 beats per second when emitting their fundamental nodes.
- A thermocouple is made from two metals, antimony and bismuth. If one junction
- Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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