Advanced Science Primary 5 Systems

In a circuit with 2 batteries and 1 bulb, how can you make the bulb shine MORE brightly?

A Add another battery in series.
B Use a longer wire.
C Add another bulb in series.
D Add another bulb in parallel.
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Worked Solution

Step 1: Increasing the number of batteries in series increases the voltage/current. Step 2: More current flowing through the bulb makes it brighter.

Correct answer: Add another battery in series.

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