Standard Science Primary 6 Energy

Ravi set up a circuit with two batteries and a bulb, but the bulb did not light up. What could be the reason?

A The batteries were connected in series.
B The bulb was brand new.
C The positive terminals were facing each other.
D The wires were made of copper.
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Worked Solution

Step 1: For current to flow, batteries must be oriented correctly (positive to negative). Step 2: If positive terminals face each other, the voltages oppose each other. Step 3: No current flows, so the bulb stays off.

Correct answer: The positive terminals were facing each other.

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