How Diodes Work

What is the role of free electrons in a conductor like copper?

Explain the difference between conductors and insulators in terms of electron movement.

What is a semiconductor and how does it differ from a conductor and an insulator?

Describe the process of doping silicon and its effects on electrical properties.

What happens at the PN junction in a diode?

How does applying a forward bias to a diode affect current flow?

What occurs when a diode is reverse-biased?