a coil has 1000 turns each of area 0.5m^2 what is the magnetic moment of the coil when it carries a current of 1ma
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Answer:
Given
n=50turns, R=0.5m, I=5A,
According to Bio-sawart Law
magnetic flux density is given by B
⇒B=
2R
μ
0
nI
⇒B=
2×0.5
4π×10
−7
×50×5
=3.14×10
−3
T
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