Your flashlight has three identical 1.5 Volt batteries in it, arranged in a chain to give a total of 4.5 Volts. Current passes first through the first battery, then through the second battery, then through the third, on its way to the bulb. When you operate the flashlight, the batteries provide power to the flowing charges and they gradually use up their chemical potential energy. Which battery will run out of chemical potential energy first?
A) All three will run out at the same time.
B) The first battery will run out first.
C) The second battery will run out first.
D) The third battery will run out first.

Question

Quizplus · Accepted Answer

In a series circuit, like the one described for the flashlight, all components (including batteries) share the same current. Therefore, all three batteries will deplete at the same rate and run out of chemical potential energy simultaneously.

Your Flashlight Has Three Identical 1