Q. Magnetic flux of $10\mu Wb$ is linked with a coil, when a current of 2 mA flows through through it. What is the self inductance of the coil?
A) 10 mH
B) 5 mH
C) 15 mH
D) 20 mH
Explanation
(b) $\phi = li$
$\ \ \ \ \ \ \ \ \ \ \ \ l\ = \frac{\phi}{i} = \frac{10 \times 10^{- 6}}{2 \times 10^{- 3}} = 5 \times 10^{- 3} = 5mH$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.