Luke tested four materials (W, X, Y, Z) in a circuit. Based on the results in the table, which material is most suitable for making the handles of a pair of electrician's pliers?
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Worked Solution
Step 1: A tool handle for electrical work must be an insulator (bulb does not light).
Step 2: Identify materials that did not light the bulb (X and Y).
Step 3: Pliers handles must also be durable; between the two, X is commonly used for safety grip.
Correct answer: Material X
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