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A small square loop of wire of side $l$ is placed inside a large square loop of side $L(L>I)$. If the loops are coplanar and their centres coincide, the mutual induction of the system is directly proportional to
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The correct answer is:
$I^2 / L$
A small square loop of wire of side $l$ is placed inside a large square loop, then mutual induction of the system depends upon.
$$
M \propto \frac{1^2}{L}
$$
$$
M \propto \frac{1^2}{L}
$$
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