Static Magnetic Field Theory

Bama

What is the flux density of the current loop in the plane of the loop. ( See attachment)

What I have is ( 4 x 3.14 x 10^ -7 x 15 x 3.14 x 8.0) / 2 =
2.36 10^ -4 wb/m^2

Assuming the above is correct, what is the value of the total flux threading the loop.

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