Standard Science Primary 5 Systems

Ravi wants to test if different materials are conductors of electricity. He places a material in a gap in a closed circuit. The bulb lights up. Which material could he have used?

A Rubber band
B Glass rod
C Iron nail
D Plastic ruler
Show Worked Solution

Worked Solution

Step 1: For the bulb to light up, the material must be an electrical conductor. Step [2-9]: Metals are generally good conductors of electricity. Step [2-9]: An iron nail is a metal conductor.

Correct answer: Iron nail

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