Multiple choice

Which one of the following is a good conductor of electricity?

  1. Copper

  2. Rubber

  3. Wood

  4. Glass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Copper is an excellent conductor of electricity due to its free electrons that can move easily through the metal lattice. Rubber, wood, and glass are insulators with high electrical resistance. Copper's conductivity (59.6 x 10^6 S/m) makes it standard for electrical wiring.

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