Q. The coefficient of mutual inductance of two coils is $6\ mH$. If the current flowing in one is $2\ ampere$, then the induced e.m.f. in the second coil will be
A) $3\ mV$
B) $2\ mV$
C) $3\ V$
D) Zero
Explanation
(d) In secondary e.m.f. induces only when current through primary changes
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.