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When a magnet is taken towards a coil, the induced e.m.f. depends on
Options
(a) the number of turns in the coil
(b) the speed of the magnet
(c) the resistance of the coil
(d) the magnetic moment of the magnet
Correct Answer:
the speed of the magnet
Explanation:
Induced e.m.f. depends on rate of change of flux linked with a coil. This, is turn, depend on the speed of the magnet taken towards the coil.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
- An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
- A nucleus of mass number 220, initially at rest, emits an α-particle. If the Q-value
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- The minimum number of NAND gates used to construct an OR gate is
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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