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Question:

Electrical wiring is commonly composed of metal covered in plastic or rubber coating. Which of these materials?

Electrical wiring is commonly composed of metal covered in plastic or rubber coating. Which of these materials is an insulator and which is a conductor?

Answer:

some okorder
non okorder
I hope the following answers your question. The metal is the conductor. The plastic or rubber coating is the insulator.
The only thing I might add to Terrys answer is DO NOT plan on a career that involves electricity.

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