Standard Science Primary 6 Energy

Which circuit arrangement will result in the bulbs being the DIMMEST?

A One battery with two bulbs in series
B Two batteries in series with two bulbs in parallel
C Two batteries in series with two bulbs in series
D One battery with two bulbs in parallel
Show Worked Solution

Worked Solution

Step 1: Fewer batteries mean less total electrical energy. Step 2: Bulbs in series share the voltage, making them dimmer than those in parallel. Step 3: Therefore, the combination of minimum batteries and series bulbs is the dimmest.

Correct answer: One battery with two bulbs in series

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