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Question

Physics Question on Magnetic Field

In the given figure, the magnetic field at ‘ O ’.
the magnetic field at ‘O’.

A

\frac{3}{4} \frac{\mu_o I}{r} + \frac{\mu_o I}{4 \pi r}

B

\frac{3}{10} \frac{\mu_o I}{r} - \frac{\mu_o I}{4 \pi r}

C

\frac{3}{8} \frac{\mu_o I}{r} + \frac{\mu_o I}{4 \pi r}

D

\frac{3}{8} \frac{\mu_o I}{r} - \frac{\mu_o I}{4 \pi r}

Answer

\frac{3}{8} \frac{\mu_o I}{r} + \frac{\mu_o I}{4 \pi r}

Explanation

Solution

The correct option is (C): Bnet=B1+B2+B3B_{\text{net}} = B_1 + B_2 + B_3
So 38μoIr+μoI4πrSo\ \frac{3}{8} \frac{\mu_o I}{r} + \frac{\mu_o I}{4 \pi r}