Standard Science Primary 5 Systems

Siti wants to install two bulbs in a dollhouse such that if one bulb fuses, the other bulb remains lit. Which circuit arrangement should she use?

A Series arrangement
B Open circuit
C Parallel arrangement
D Single-loop arrangement
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Worked Solution

Step 1: Identify the requirement (one bulb stays lit if the other fails). Step 2: In a parallel circuit, there are multiple paths for electricity. Step 3: If one path is broken (fused bulb), electricity still flows through the other path.

Correct answer: Parallel arrangement

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