Standard Science Primary 5 Systems

Siti wants to set up a circuit where two bulbs are controlled by a single switch. If one bulb fuses, the other bulb should remain lit. Which circuit arrangement should she use?

A Two bulbs in parallel with each other
B Two bulbs in series with the switch
C One bulb in series and one in parallel
D A circuit without a battery
Show Worked Solution

Worked Solution

Step 1: Identify the requirement (one bulb stays lit if the other fuses). Step 2: Recall that parallel circuits provide multiple paths for current. Step 3: If one path is broken, current still flows through the other path.

Correct answer: Two bulbs in parallel with each other

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