Standard Science Primary 5 Systems

Siti has a circuit with two bulbs and two batteries. She notices that when one bulb is removed, the other bulb remains lit. How are the bulbs arranged?

A The bulbs are arranged in parallel.
B The circuit is open.
C The batteries are arranged in parallel.
D The bulbs are arranged in series.
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Worked Solution

Step 1: Identify the observation (one bulb remains lit after the other is removed). Step 2: Recognize that this means there is more than one path for electricity to flow. Step 3: A parallel arrangement provides multiple paths for the current.

Correct answer: The bulbs are arranged in parallel.

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