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An avarage induced e.m.f. of 1 V appears in a coil when the current in it is changed from 10 A in one direction to 10A in opposite direction in 0.5 sec. Self inductance of the coil is
Options
(a) 50 mH
(b) 25 mH
(c) 100 mH
(d) 75 mH
Correct Answer:
25 mH
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a magnetic substance is brought near the north or the south pole of a bar magnet
- If in a p-n junction, a square input signal of 10 V is applied as shown, then the output
- Radius of a soap bubble is increased from R to 2R. Work done in this process
- A metal rod of length l cuts across a uniform magnetic field B with a velocity v.
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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