Question

Which of the following statements correctly describes insulators?

-Insulators have many free electrons.

-Insulators allow charges to build up in one spot.

-Insulators have few free electrons.

-Insulators are commonly used to protect electrical wire.

Answer 1

Insulators have a very few electrons

Answer 2

I think it is -Insulators have few free electrons --- but ------ Insulators are commonly used to protect electrical wire is also true