Question

What is the depletion region?

Options

• The boundary formed when p-type and n-type semiconductor regions are joined

• The region in which the current becomes large in forward bias

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

• The potential difference developed across the depletion layer

Answer 1

The depletion region is the region around the junction without mobile charge carriers. Fixed ions remain on both sides of the junction.