1.

Figure shows a rectangular coil near a long wire. The mutual inductance of the combination is

A. \[\frac{{{\mu }_{0}}a}{2\pi }ln\left( 1-\frac{b}{c} \right)\]
B. \[\frac{{{\mu }_{0}}a}{2\pi }ln\left( 1+\frac{b}{c} \right)\]
C. \[\frac{{{\mu }_{0}}a}{\pi }ln\left( 1+\frac{b}{c} \right)\]
D. \[\frac{{{\mu }_{0}}a}{\sqrt{2}\pi }ln\left( 1+\frac{b}{c} \right)\]
Answer» C. \[\frac{{{\mu }_{0}}a}{\pi }ln\left( 1+\frac{b}{c} \right)\]


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