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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 body projected vertically from the earth reaches a height equal to earth’s radius
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
- If a proton, a deuteron and an alpha particle, on being accelerated by the same
- A body of mass M hits normally a rigid wall with velocity V and bounces back
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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