Question

Mutual inductance in Fig. shown is–v

• A. Zero
• B. $\frac{\mu_{0}b}{2\pi}$log_e$\frac{a}{b}$
• C. $\frac{\mu_{0}b}{2\pi}$log_e$\left( 1 + \frac{b}{a} \right)$
• D. $\frac{\mu_{0}b}{2\pi}$log_e$\left( 1 + \frac{a}{b} \right)$

Answer 1

Answer: (C)

$\frac{\mu_{0}b}{2\pi}$log_e$\left( 1 + \frac{b}{a} \right)$

Answer 2

B =$\frac{\mu_{0}I}{2\pi y}$ df = Bbdy