Standard Science Primary 6 Energy

Siti set up a circuit with three bulbs. She noticed that when one bulb was removed, the other two remained lit. How were the bulbs arranged?

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

Worked Solution

Step 1: Identify the observation (one removed, others stay lit). Step 2: Recall circuit properties. In parallel, there are multiple paths for current. Step 3: Therefore, the bulbs must be in parallel.

Correct answer: All three bulbs were in parallel.

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