MCQ
A small square loop of side $'a'$ and one turn is placed inside a larger square loop of side ${b}$ and one turn $(b \gg a)$. The two loops are coplanar with thei 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
- ✓$\frac{\mu_{0}}{4 \pi} 8 \sqrt{2} \frac{{a}^{2}}{{b}}$
- B$\frac{\mu_{0}}{4 \pi} \frac{8 \sqrt{2}}{{a}}$
- C$\frac{\mu_{0}}{4 \pi} 8 \sqrt{2} \frac{{b}^{2}}{{a}}$
- D$\frac{\mu_{0}}{4 \pi} \frac{8 \sqrt{2}}{{b}}$
