Question

Calculate the magnetic field induction 'B' at the centre of a circular coil having 5000 turns radius xcm and carrying a current of 5A

Answer 1

Magnetic field at center due to one ring is B.

Hence, due to n ring is B,

B=nB1

where n=5000turns.

B1=2rμ0I where I=current through ring, r=radius of ring.

B=5000×2×π×10−24π×10−7×5=50×10−2=0.5T

Answer 2

Explanation:

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