Question

A wire carrying 100A is bent into a circular loop of 5cm radius. The flux density at its centre in tesla is
1) 22.56 x 10-4
2) 23.08 x 10-4
3) 12.56 x 10-4
4) 40.06 x 10-4
I know the answer ,give the solution please​

Answer 1

Answer:

B= μ0 i

B=4π×10  −7  ×100 / 2×5×10^−2

B=125⋅7×10^−5 T