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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
- The potential differences across the resistance, capacitance and inductance
- A national roadway bridge over a canal is in the form of an arc of a circle of radius
- A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
- In a n-p-n transistor about 10¹⁰ electrons enter the emitter in 2 μs,
- Two Carnot engine A and B are operated in series. The engine A receives
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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