When a light bulb is connected to the positive and negative terminals of a battery, the battery releases electrons by a chemical reaction, and the bulb lights up because these electrons are flowing through its filament.

Question

Quizplus · Accepted Answer

The battery generates a flow of electrons through a chemical reaction between its internal components. When a light bulb is connected across the battery's terminals, these electrons flow through the bulb's filament, causing it to heat up and emit light.

When a Light Bulb Is Connected to the Positive and Negative