Suppose that we connect two identical realistic batteries in parallel. The internal resistance of the combined set of batteries (considered as a unit) is
A) twice that of each individual battery.
B) half that of each individual battery.
C) the same as that of each individual battery.

Question

Quizplus · Accepted Answer

When two identical resistors (in this case, the internal resistances of the batteries) are connected in parallel, the equivalent resistance is half that of each individual resistor. This principle applies to the internal resistance of batteries connected in parallel as well.

Suppose That We Connect Two Identical Realistic Batteries in Parallel