Two identical light bulbs are connected to a battery.Will the light bulbs be brighter if they are connected to the battery in series or in parallel?
A)in series
B)in parallel
C)The brightness will be the same in series and in parallel.
D)There is not enough information to determine an answer.

Question

Quizplus · Accepted Answer

When bulbs are connected in parallel, they each receive the full voltage from the battery. This means that the brightness of the bulbs will be the same as if they were the only bulb connected to the battery. When bulbs are connected in series, the voltage is split between the bulbs. This means that each bulb receives a lower voltage than if it were the only bulb connected, resulting in lower brightness. Therefore, the bulbs will be brighter when connected in parallel.

Two Identical Light Bulbs Are Connected to a Battery