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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.
Related Questions: - When a magnet is taken towards a coil, the induced e.m.f. depends on
- What is the Q-value of the reaction?
¹H+⁷Li→⁴He+⁴He
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When a magnet is taken towards a coil, the induced e.m.f. depends on
- What is the Q-value of the reaction? ¹H+⁷Li→⁴He+⁴He
- If the r.m.s. velocity of a gas is v, then
- Out of the following which pair of quantities does not have same dimensions?
- An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance.
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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