EE211B Quizizz #9

The depletion layer of a PN junction diode has neither free mobile electrons nor holes

• True

• False

The potential barrier existing across a PN junction corresponds to Height of the barrier

• True

• False

A zener diode works on the principle of________

• diffusion of charge carriers across the junction

• hopping of charge carriers across the junction

• thermionic emission

• tunneling of charge carriers across the junction

In avalanche breakdown,

• electric current multiplication takes place

• electrons are decelerated for a period of time

• phenomenon of voltage multiplication takes place

• sudden rise in voltage takes place

The zener diode is heavily doped because______

• to have high breakdown voltage

• to have high current variations

• to have low breakdown voltage

• to maintain perfect quiescent point