Conductors and Insulators
Conductors and Insulators: Overview
This Topic covers sub-topics such as Semiconductors and Free Electrons
Important Questions on Conductors and Insulators
What does the conduction of electron depends upon?

What does semiconductor mean? Give examples of a semiconductor.

Metals are good conductors due to the presence of free electrons.


Electric conduction in a semiconductor takes place due to

What is the relationship between resistance and conductivity?

What is a practical application of insulators?

Which of the following is a feature of insulators?

Why do conductors heat up when current flows through them?

What distinguishes a conductor from an insulator?

Which material is used as a conductor in overhead power lines?

What happens when an insulator is exposed to high voltage?

Which of the following is not an insulator?

What is the primary function of an insulator in circuits?

Why is copper commonly used in electrical wiring?

Which of the following is a poor conductor of electricity?

What property makes rubber a good insulator?

Why are metals better conductors than non-metals?

What determines the conductivity of a material?

Which of the following is an application of conductors?
