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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
- In an interference experiment, third bright fringe is obtained at a point
- A capacitor having a capacity of 2 μF is charged to 200V and then the plates
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- For non-conductors, the energy gap is
- A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)
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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