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The coefficient of mutual inductance of two coils is 6 mH. If the current flowing in one is 2A, the induced e.m.f. in the second coil will be
Options
(a) Zero
(b) 3 V
(c) 3 mV
(d) 2 mV
Correct Answer:
Zero
Explanation:
E.M.F. is induced in secondary coil only when current in primary coil changes. Since current in one coil is constant at 2 amp, e.m.f. induced in secondary coil is zero.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A gramophone record is revolving with an angular velocity ?. A coin is placed at
- Two metallic spheres of radii 1 cm and 3 cm are given charges of -1 x 10⁻² C
- If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
- In the equation y=asin(?t+kx),the dimensionals formula of ? is
- Two identical capacitors are first connected in series and then in parallel.
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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