Standard Science Primary 5 Systems

Ravi is testing materials to see if they conduct electricity. He placed an object in the gap of the circuit shown below, and the bulb lit up. Which of the following materials could the object be made of?

A Wood
B Glass
C Rubber
D Copper
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Worked Solution

Step 1: For the bulb to light up, the circuit must be closed. Step 2: The object placed in the gap must be an electrical conductor to allow current to flow. Step 3: Metals are good conductors. Copper is a metal.

Correct answer: Copper

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