Standard Science Primary 5 Systems

In the parallel circuit shown below, Bulb X is fused. Which of the following is correct?

A Bulb Y will go out.
B Bulb Y will flash continuously.
C Bulb Y will remain lit.
D The battery will become hot.
Show Worked Solution

Worked Solution

Step 1: Identify that Bulb X and Bulb Y are connected in parallel. Step 2: This means there are separate pathways for the electric current to flow from the battery to each bulb. Step 3: If Bulb X fuses, only its specific pathway is broken. Step 4: Current can still flow through the pathway containing Bulb Y, so it remains lit.

Correct answer: Bulb Y will remain lit.

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