Category: Field Effect Transistors – FET

A n-channel D-MOSFET with a positive VGS is operating in _______________?

Hamad Field Effect Transistors - FET 27/05/2021

0

A. the depletion-mode
B. the enhancement-mode
C. cut off
D. saturation

In class A operation, the input circuit of a JFET is ____________ biased?

Hamad Field Effect Transistors - FET 17/04/2021

0

A. forward
B. reverse
C. not
D. none of the above

The constant-current region of a JFET lies between______________?

Hamad Field Effect Transistors - FET 13/04/2021

0

A. cut off and saturation
B. cut off and pinch-off
a. and IDSS
C. pinch-off and breakdown

The pinch-off voltage of a JFET is about _______________?

Hamad Field Effect Transistors - FET 08/04/2021

0

A. 5 V
B. 0.6 V
C. 15 V
D. 25 V

A JFET has high input impedance because _________________?

Hamad Field Effect Transistors - FET 07/04/2021

0

A. it is made of semiconductor material
B. input is reverse biased
C. of impurity atoms
D. none of the above

If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ______________?

Hamad Field Effect Transistors - FET 22/03/2021

0

A. is decreased
B. is increased
C. remains the same
D. none of the above

For VGS = 0 V, the drain current becomes constant when VDS exceeds ________________?

Hamad Field Effect Transistors - FET 09/03/2021

0

A. cut off
B. VDD
C. VP
D. V

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 ________________?

Hamad Field Effect Transistors - FET 25/02/2021

0

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

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

Hamad Field Effect Transistors - FET 10/02/2021

0

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

A JFET has ____________ power gain?

Hamad Field Effect Transistors - FET 04/02/2021

0

A. small
B. very high
C. very small
D. none of the above