A small square loop of wire of side 1 is placed inside a large square loop of wire of side L(L >> 1) . The loops are co-planar and their centers coincide. The mutual inductance of the system is proportional to
1
\(\rm \frac{1}{L}\)
2
\(\rm \frac{1^2}{L}\)
3
\(\rm \frac{L}{1}\)
4
\(\rm \frac{L^2}{1}\)
5
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