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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.
Related Questions: - A magnetic needle suspended parallel to a magnetic field requires √3J of work
- An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
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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 magnetic needle suspended parallel to a magnetic field requires √3J of work
- An electron moves on a straight line path XY as shown. The abcd is a coil adjacent
- Two coils of self inductance 2 mH and 8 mH are placed so close together
- A astronomical telescope has objective and eye-piece of focal lengths
- In common base circuit of a transistor, current amplification factor is 0.95.
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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