Q. An e.m.f. of $12\ volts$ is induced in a given coil when the current in it changes at the rate of $48\ amperes\ per\ minute$. The self inductance of the coil is
A) $0.25\ henry$
B) $15\ henry$
C) $1.5\ henry$
D) $9.6\ henry$
Explanation
(b) $L = \frac{e}{di/dt} = \frac{12}{48/60} = 15\ H$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.