Advanced Science Primary 5 Systems

In a parallel circuit with two identical bulbs, adding a third identical bulb in its own parallel branch will __________.

A cause the battery to last longer
B make the other bulbs dimmer
C make the other bulbs brighter
D not change the brightness of the other bulbs
Show Worked Solution

Worked Solution

Step 1: In parallel, each branch is independent. Step [2-9]: Each branch receives the same voltage from the battery. Step [2-9]: Adding a branch doesn't affect current in existing branches.

Correct answer: not change the brightness of the other bulbs

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