Q. A cell of internal resistance $r$ is connected to an external resistance $R.$ The current will be maximum in $R,$ if
A) $R = r$
B) $R < r$
C) $R > r$
D) $R = r/2$
Explanation
(a) Current through $R$ is maximum when total internal resistance of the circuit is equal to external resistance
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.