Standard Science Primary 6 Energy

Which material should be used to test if a substance is an electrical conductor in a closed circuit?

A Glass
B Graphite
C Plastic
D Rubber
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Worked Solution

Step 1: Conductors allow electricity to pass through. Step 2: Most non-metals are insulators, but carbon (graphite) is a notable exception. Step 3: Graphite will allow the bulb to light up.

Correct answer: Graphite

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