Q. If a charge in current of $0.01\ A$ in one coil produces a change in magnetic flux of $1.2 \times 10^{- 2}Wb$ in the other coil, then the mutual inductance of the two coils in henry is

A) 0
B) 0.5
C) 1.2
D) 3
Explanation

(c) $\phi = Mi \Rightarrow M = \frac{1.2 \times 10^{- 2}}{0.01} = 1.2H$

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.