Which of the following is a conductor of electricity?

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Air

Copper wire

Plastic

Wood

answer is B.

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Detailed Solution

Copper wire is a conductor of electricity.
A material's conductivity determines whether electricity can go through it. For instance, metals are electrical conductors. Metals like copper, silver etc are a few examples of conductors. On the other hand, air, plastic, and wood are electrical insulators or bad conductors.

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