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The magnetic field at the centre of a circular coil carrying current I ampere is B. If the coil is bent into smaller circular coil of n turns, then its magnetic field at the centre is B’. The ratio between B’ and B is
Options
(a) (1:1)
(b) n:1
(c) n²:1
(d) 2n:1
Correct Answer:
n²:1
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 nucleus disintegrates into two nuclear parts which have their velocities in the ratio
- ₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle
- A change of 0.04 V takes place between the base and the emitter when an input
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- The p-type semiconductor 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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