⇦ | ![]() | ⇨ |
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:
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
- If a steel wire of length l and magnetic moment M is bent into a semicircular arc,
- The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external
- Two vessels separately contain two ideal gases A and B at the same temperature,
- If an electron and a proton have the same de-Broglie wavelength, then the kinetic
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply