Magnetism and Matter - Result Question 5

8. Current is flowing in a coil of area A and number of turns N, then magnetic moment of the coil, M is

(a) NiA

(b) NiA

(c) NiA

(d) N2Ai

[2001]

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Answer:

Correct Answer: 8. (a)

Solution:

  1. (a) Magnetic moment linked with one turn =iA Magnetic moment linked with,

N turns =iNAampm2. Here, A= Area of current loop.



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