ASVAB Practice Test

Question: 1 / 400

Why is copper often used in electrical wiring?

It has a high resistance

It is a good conductor of electricity

Copper is often used in electrical wiring because it is an excellent conductor of electricity. This means that it allows electricity to flow easily and efficiently through the wire, making it a practical and safe choice for conducting electricity in homes and other buildings. Option A is incorrect because high resistance would hinder the flow of electricity. Option C is incorrect because copper is a good conductor of heat, making it useful for cooking and other heat-based applications. Option D is incorrect because while copper may be more expensive than other metals, its superior conductivity and durability make it a valuable investment for electrical purposes.

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It is a poor conductor of heat

It is inexpensive

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