Standard Science Primary 5 Systems

Siti set up a circuit with three bulbs. She noticed that when one bulb fused, the other two remained lit. Which of the following describes the circuit arrangement?

A The battery is flat.
B All bulbs are arranged in series.
C All bulbs are arranged in parallel.
D Two bulbs are in series and one is in parallel.
Show Worked Solution

Worked Solution

Step 1: Identify the observation (one bulb fused, others stay lit). Step 2: Recall that parallel circuits provide multiple paths for current. Step 3: Therefore, a break in one path does not affect the others.

Correct answer: All bulbs are arranged in parallel.

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