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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
- A polished metal plate has a rough and black-spot. It is heated to 1400 K
- At what angle should the two forces 2P and √2 P act,so that the resultant force is P√10?
- Two poles of same strength attract each other with a force of magnitude F
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- Wires A and B are made from the same material. A has twice the diameter and three times
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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