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A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is B. It is then bent into a circular coil of n turns. The magnetic field at the centre of this coils of n turns will be
Options
(a) nB
(b) n²B
(c) 2nB
(d) 2n²B
Correct Answer:
n²B
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
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- A particle moves a distance x in time but according to equation x=(t+5)⁻¹
- The drift velocity of the electrons in a copper wire of length 2 m under
- One coolie takes 1 minute to raise a suitcase through a height of 2 m
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
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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