JEE Main 2026 Physics question
A circular current loop of radius R is placed inside a square loop of side length L (L >> R) such that they are co-planar and their centers coincide. The permeability of free space is μ₀. The mutual inductance between circular loop and square loop is .
Answer: (D)
Solution
The field at the centre of a square loop of side L carrying current I is . Since R
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