Standard Science Primary 6 Energy

Siti set up the circuit shown below. When one bulb was removed, the other two bulbs remained lit. How were the bulbs most likely arranged?

A One bulb was in series and two were in parallel.
B All bulbs were in series.
C The bulbs were not connected to a battery.
D All bulbs were in parallel.
Show Worked Solution

Worked Solution

Step 1: Analyze the observation—removing one bulb does not affect the others. Step 2: Recall that in a parallel circuit, there are multiple paths for electricity. Step 3: Therefore, the bulbs must be in parallel.

Correct answer: All bulbs were in parallel.

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