Standard Science Primary 6 Energy

Siti set up a circuit with two bulbs and two batteries in series. She noticed that one bulb was fused. What would happen to the other bulb?

A It would not light up.
B It would un-fuse.
C It would remain lit.
D It would become brighter.
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Worked Solution

Step 1: Identify the circuit type (Series). Step 2: A fused bulb acts as a break/gap in the circuit. Step 3: In a series circuit, current must pass through every component. If there is a gap, current stops flowing. Step 4: The other bulb will not light up.

Correct answer: It would not light up.

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