Current Electricity Charging Discharging Of Capacitors Question 651

Question: To draw maximum current from a combination of cells, how should the cells be grouped

[AFMC 2005]

Options:

A) Series

B) Parallel

C) Mixed

D) Depends upon the relative values of external and internal resistance

Show Answer

Answer:

Correct Answer: D

Solution:

Maximum current will be drawn from the circuit if resultant resistance of all internal resistances is equal to the value of external resistance if the arrangement s mixed. In series, $ R»nr $ and in parallel, the external resistance is negligible.