Q. What should be the value of self inductance of an inductor that should be connected to 220 V, 50 Hz supply so that a maximum current of 0.9 A flows through it?
A) 11 H
B) 2 H
C) 1.1 H
D) 5 H
Explanation
(c) $|e| = L\frac{di}{dt} = L \times \frac{10}{0 - 9}$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ L = 1.1\ H$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.