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Question: Answered & Verified by Expert
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
PhysicsElectromagnetic InductionTS EAMCETTS EAMCET 2015
Options:
  • A $I / L$
  • B $I^2 / L$
  • C $1 / L^2$
  • D $I^2 / L^2$
Solution:
2323 Upvotes Verified Answer
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.
$$
M \propto \frac{1^2}{L}
$$

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