Standard Science Primary 6 Energy

Study the circuit diagram. If Bulb B1 fuses, what will happen to Bulb B2?

A B2 will remain lit.
B B2 will become brighter.
C B2 will go out.
D B2 will flicker.
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Worked Solution

Step 1: Observe the circuit arrangement (Series). Step 2: A fused bulb creates a gap in the circuit. Step 3: Current cannot flow through a gap, so all bulbs in the series path will go out.

Correct answer: B2 will go out.

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