ASVAB Electronics Information Practice Test 432950

Question 1 of 5

Insulators have valence shells that are more than half full of electrons and, as such, are tightly bound to the nucleus and difficult to move from one atom to another.

Why is an insulator a poor conductor of electricity?

an insulator has few free electrons

an insulator is made of inorganic material

an insulator is made of organic material

an insulator has many free electrons