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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 wire elongates by l mm when a load W is hanged from it. If the wire goes over
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- In Young’s double slit experiment, when wavelength used is 6000Å and the screen
- Two similar springs P and Q have spring constants Kp and Kq, such that Kp>Kq.
- Changing magnetic fields can set up current loops in nearby metal bodies
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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