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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
- An electron in potentiometer experiences a force 2.4×10⁻¹⁹N. The length of potentiometer
- A particle is released from rest from a tower of height h, i.e,t₁ : t₂ : t₃ is
- Alternating current is transmitted to distant places at
- A thermodynamic system undergoes cyclic process ABCDA as shown in figure
- A body cools in 7 minute from 60⁰C to 40⁰C. What time, in minute does it take to cool
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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