Multiple choice

Which type of material won't let the current flow under normal condition?

  1. Resistor

  2. Insulator

  3. Conductor

  4. Rheostat

  5. Semiconductor

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

An electrical insulator is a material whose internal electric charges do not flow freely, which does not conduct an electric current under the influence of an electric field.