When a battery is used to light up a lightbulb,
A) electric charge builds up within the bulb, causing the bulb to light up.
B) electric charge builds up on the battery terminals but none of it actually flows through the bulb.
C) all the electrical current produced by the battery is consumed by the bulb.
D) the amount of electrical current flowing into one side of the battery is equal to the amount flowing out of the other side.
E) some of the electrical current produced by the battery is consumed by the bulb, and the rest flows back into the battery.

Question

Quizplus · Accepted Answer

The electrical current flows in a closed loop, meaning the current entering the bulb is equal to the current leaving it, and the same applies to the battery.

When a Battery Is Used to Light Up a Lightbulb