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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 particle is executing the motion x=Acos (ωt-θ). The maximum velocity of the particle is
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV.
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- If the radius of star is R and it acts as a black body, what would be the temperature
- As a result of interference of two coherent sources of light, energy is
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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