JEE Main 2021 (31 Aug, Shift 1) Physics Q7: Inductance

Question

A small square loop of side 'a' and one turn is placed inside a larger square loop of side b and one turn (b > > a). The two loops are coplanar with their centres coinciding. If a current I is passed in the square loop of side 'b', then the coefficient of mutual inductance between the two loops is :

Accepted Answer

Option 1: $\frac{\mu_0}{4\pi}\,8\sqrt{2}\,\frac{a^2}{b}$

Answer

$\frac{\mu_0}{4\pi}\,8\sqrt{2}\,\frac{a^2}{b}$

Answer

$\frac{\mu_0}{4\pi}\,8\sqrt{2}\,\frac{b^2}{a}$

Answer

$\frac{\mu_0}{4\pi}\,\frac{8\sqrt{2}}{a}$

Answer

$\frac{\mu_0}{4\pi}\,\frac{8\sqrt{2}}{b}$

JEE Main 31 August 2021, Shift 1, Physics Q7

Same idea in other shifts