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AP® Physics C: E & M

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Parallel Light Bulbs: Effect on Brightness

APPHEM-SUCLVK

A simple circuit consists of a battery and a light bulb. A second identical light bulb is then added in parallel to the first light bulb.

What effect does this have on the brightness of the first light bulb?

A

The brightness gets brighter.

B

The light bulb goes out.

C

The brightness gets dimmer.

D

The brightness does not change.

E

The light bulb flashes on and off.