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A wire of one metre length carries a constant current. The wire is bent to form a circular loop. The magnetic field at the centre of this loop is B.The same is now bent to form a circular loop of smaller radius having four turns. The magnetic field at the centre of this new loop will be
Options
(a) B/2
(b) 4B
(c) B/4
(d) 16B
Correct Answer:
16B
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin circular ring of mass M and radius R is rotating in a horizontal plane about
- An engine pumps water through a hose pipe. Water passes through the pipe
- A particle of mass m executes simple harmonic motion with amplitude
- When a magnet is taken towards a coil, the induced e.m.f. depends on
- A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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