Given the question: Answer the following question given this paragraph: The internal resistance r can behave in complex ways. As noted, r increases as a battery is depleted. But internal resistance may also depend on the magnitude and direction of the current through a voltage source, its temperature, and even its history. The internal resistance of rechargeable nickel-cadmium cells, for example, depends on how many times and how deeply they have been depleted. Q: As a battery is depleted what happens to its internal resistance? Choices: - stagnates - changes - reduces - increases A:
The answer is:
increases