Siti set up an electrical circuit. She left a gap in the circuit and tested different materials to see if the bulb would light up. Which of the following materials will close the circuit and allow the bulb to light up?
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Worked Solution
Step 1: For the bulb to light up, the material must be an electrical conductor.
Step 2: Metals are good electrical conductors.
Step 3: A steel paper clip is made of metal and will allow electric current to pass through.
Correct answer: A steel paper clip
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