A 1.56-V battery has an internal resistance of 0.120 Ω. What is the maximum current that can be drawn from this battery?
A) infinite (or at least 1000s of amps)
B) 1.56 A
C) 0.190 A
D) 13.0 A
E) 7.50 A

Question

Quizplus · Accepted Answer

The maximum current can be calculated using Ohm's Law, $I = \frac{V}{R}$, where $V$ is the voltage (1.56 V) and $R$ is the internal resistance (0.120 Ω). Thus, $I = \frac{1.56}{0.120} = 13.0$ A.

A 156-V Battery Has an Internal Resistance of 0