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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
- If alpha, beta and gamma rays carry same momentum, which has the longest
- If the momentum of electron is changed by P, then the de-Broglie wavelength
- A radioactive substance contains 10000 nuclei and its halflife period is 20 days
- Huygen’s wave theory allows us to know
- When a bullet of mass 10 g and speed 100 ms⁻¹ penetrates up to distance 1 cm
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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