Energy and Voltage in Circuits

1 mark · Easy

Which statement correctly describes what happens to the brightness of lamps if more identical lamps are added in parallel to a circuit with one battery?

Show answer

Correct option: The brightness stays the same for each lamp.

Common mistakes: Choosing 'all lamps become dimmer'.

Show mark scheme and worked solution

Marking points

B1 · 1 mark · Correct option selected.

Worked solution

In a parallel circuit, each lamp receives the full voltage, so their brightness stays the same, even if more are added.