Multiple choice

Why is the bulb brighter in the circuit with 2 batteries and one bulb?

  1. The flow of electricity is less.

  2. The flow of electricity is the same.

  3. The flow of electricity is more.

  4. The flow of electricity is blocked

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Brightness in a bulb is directly related to the amount of electrical current flowing through it. Adding more batteries increases the voltage, which drives more current through the bulb.