Multiple choice

Which of the following could NOT be used to replace a wire in a circuit?

  1. Cork

  2. Steel spoon

  3. Aluminum foil

  4. Iron nail

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A wire in a circuit must be made of a conductive material to allow electricity to flow. Cork is an insulator, meaning it prevents the flow of electricity, whereas metals like steel, aluminum, and iron are conductors.