Standard Science Primary 6 Energy

Siti wants to arrange three identical bulbs such that they are at their brightest. Which arrangement should she choose?

A All three bulbs in parallel
B All three bulbs in series
C Two bulbs in series, one in parallel
D One bulb in series, two in parallel
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Worked Solution

Step 1: In a parallel circuit, each bulb receives the full voltage of the batteries. Step 2: In a series circuit, voltage is shared, decreasing brightness. Step 3: Parallel arrangement ensures maximum brightness for each bulb.

Correct answer: All three bulbs in parallel

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