Multiple choice

______ is a good conductor of electricity.

  1. Copper

  2. Wood

  3. Iron

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Copper is an excellent electrical conductor due to its low resistivity and availability. This is why it's the standard material for electrical wiring. Wood is an insulator, and while iron conducts electricity, copper has significantly better conductivity (about 6 times better than iron).

Keep practicing — related questions