Standard Science Primary 5 Systems

Ravi added a second battery in series to a simple circuit. What will most likely happen to the bulb?

A It will flicker and go out instantly.
B It will become brighter.
C It will stay the same brightness.
D It will become dimmer.
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Worked Solution

Step 1: Adding batteries in series increases the electrical energy supplied. Step [2-9]: A larger current flows through the circuit. Step [2-9]: The bulb glows brighter due to the increased energy.

Correct answer: It will become brighter.

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