Which of the following devices has the highest input impedance ?

Related Mcqs:

In a JFET, when drain voltage is equal to pinch-off voltage, the depletion layers ______________?

A. almost touch each other B. have large gap C. have moderate gap D. none of the above...

In a p-channel JFET, the charge carriers are _____________?

A. electrons B. holes C. both electrons and holes D. none of the above...

A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, ______________?

A. the voltage gain will increase B. the transconductance will increase C. the voltage gain will decrease D. the Q-point will shift...

In a certain common-source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is_______________?

A. 1 B. 11.4 C. 8.75 D. 3.2...

In a certain CS JFET amplifier, RD= 1kO , RS= 560 O , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ________________?

A. 450 B. 45 C. 2.52 D. 4.5...