Luke tested four objects (P, Q, R, S) in a circuit to see if they were conductors of electricity. The bulb only lit up when P and R were used. Which of the following objects are insulators?
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Worked Solution
Step 1: If the bulb lights up, the object is a conductor.
Step 2: P and R allowed electricity to flow.
Step 3: Q and S did not allow flow, making them insulators.
Correct answer: Q and S
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