Q: As a battery is depleted what happens to its internal resistance?


Read this paragraph and choose the correct option from the provided answers:

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.

 Choices:

- stagnates

- changes

- reduces

- increases


A:
increases