Compared to bipolar junction transistor, a JFET has

Electronics and Communication Engineering (ECE) : Electronic Devices and Circuits - Quiz(MCQ)

higher voltage gain

lower input impedance

high input impedance and high voltage gain

high input impedance and low voltage gain

Correct Answer : Option (D) : high input impedance and low voltage gain

Explanation : JFET is voltage controlled device. Therefore its input impedance is high. But voltage gain is lower than in BJT.

Recently Updated in Electronic Devices and Circuits Questions

The kinetic energy of photoelectrons emitted by a photo sensitive surface depends on

angle of incidence of radiation

surface conditions of the surface

intensity of the incident radiation

wavelength of the incident radiation

Correct Answer : wavelength of the incident radiation

For radiating ultraviolet rays, LEDs use

gallium arsenide

zinc sulphide

gallium phosphide

None of the above

Correct Answer : zinc sulphide

For an P-N-P transistor in normal operation its junction are biased as

emitter base : reverse, collector base : reverse

emitter base : reverse, collector base : forward

emitter base : forward, collector base : forward

emitter base : forward, collector base : reverse

Correct Answer : emitter base : forward, collector base : reverse