Question 297: Electromagnetic Induction

Question

Two conducting circular loops of radii '$$R_1$$' and '$$R_2$$' are placed in the same plane with their centres coinciding. If $$R_1>R_2$$, the mutual inductance $$M$$ between them will be directly proportional to

Accepted Answer

Mutual inductance of two concentric coplanar circular coils,
$$\begin{aligned}
& \quad M=\frac{\mu_0 \pi N_1 N_2 R_2^2}{2 R_1} \
& 	herefore \quad M \propto \frac{R_2^2}{R_1}
\end{aligned}$$

Answer

$$\frac{R_1}{R_2}$$

Answer

$$\frac{R_2}{R_1}$$

Answer

$$\frac{R_1^2}{R_2}$$

Answer

$$\frac{R_2^2}{R_1}$$

Electromagnetic Induction

Two conducting circular loops of radii '$R_1' and 'R_2' are placed in the same plane with their centres coinciding. If R_1>R_2, the mutual inductance M$ between them will be directly proportional to

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