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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 1Ω resistance in series with an ammeter is balanced by 75 cm of potentiometer wire
- Mass of the nucleons together in a heavy nucleus is
- A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface
- An α-particle of energy 5 MeV is scattered through 180⁰ by a fixed uranium nucleus.
- The identical loops of copper and aluminium are moving with the same speed
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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