Ability refers to being able to do something, which means that if one can do something, they have the ability to do it. Alternately, a skill is being able to do something well. Hence, it can be said that if...

Insulator is a material which is not able to conduct electricity. On the other hand, dielectrics are insulators which polarized when an electrical field is applied.

Talent refers to the natural aptitude or ability to do something. On the other hand, skill refers to the ability which is acquired by training and practicing. Only a limited number of people are bestowed with...

Ability is the "actual" level of development and capability in the "potential" level of development.