Q. To get the maximum current from a parallel combination of $n$ identical cells each of internal resistance $r$ and external resistance $R,$ when
A) $R \gg r$
B) $R \ll r$
C) $R = r$
D) None of these
Explanation
(b) Cells are joined in parallel when internal resistance is higher than external resistance. $\lbrack R < < r\rbrack$
$i = \frac{E}{R + \frac{r}{n}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.