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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: - An Electric charge does not have which of the following properties?
- A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An Electric charge does not have which of the following properties?
- A voltmeter of range 2 V and resistance 300Ω cannot be converted into ammeter
- If the number of radius of ²⁷Al is 3.6 Fermi, the approximate nuclear radius
- A current is flowing through resistance. A potential difference of 120 V
- The input resistance of a silicon transistor is 100 W. Base current is changed
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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