Question

What is a p-n junction diode?

Options

• A region around the junction that is free from mobile charge carriers

• A potential difference developed across the depletion layer due to immobile ions

• A two-terminal semiconductor device that allows current mainly in one direction

• A process in which charge carriers move from a higher concentration to a lower concentration

Answer 1

A p-n junction diode is a two-terminal semiconductor device. Its main characteristic is that it allows current mainly in one direction.