Basic Electronics (3110016) MCQs

MCQs of Field effect transistors (FET) and its biasing

Showing 31 to 40 out of 99 Questions
1 2 3 4 5 6
31.
The input impedance of a JFET is _______ that of an ordinary transistor
(a) Equal to
(b) Less than
(c) More than
(d) None of the above
Answer:

Option (c)

32.
In a P-channel JFET, the charge carriers are ________
(a) Electrons
(b) Holes
(c) Both electrons and holes
(d) None of the above
Answer:

Option (b)

33.
When drain voltage equals the inch-off voltage, then drain current _______ with the increase in drain voltage
(a) Decreases
(b) Increases
(c) Remains constant
(d) None of the above
Answer:

Option (c)

34.
If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ______
(a) Is decreases
(b) Is increases
(c) Remains the same
(d) None of the above
Answer:

Option (a)

35.
A MOSFET has _______ terminals
(a) Two
(b) Five
(c) Four
(d) Three
Answer:

Option (d)

36.
A MOSFET can be operated with _______
(a) Negative gate voltage only
(b) Positive gate voltage only
(c) Positive as well as negative gate voltage only
(d) None of the above
Answer:

Option (c)

37.
A JFET has _______ power gain
(a) Small
(b) Very high
(c) Very small
(d) None of the above
Answer:

Option (b)

38.
The input control parameter of a JFET is _______
(a) Gate voltage
(b) Source voltage
(c) Drain voltage
(d) Gate current
Answer:

Option (a)

39.
A common base configuration of a PNP transistor is analogous to _______ of a JFET
(a) Common source configuration
(b) Common drain configuration
(c) Common gate configuration
(d) None of the above
Answer:

Option (c)

40.
A JFET has high input impedance because ________
(a) It is made of semiconductor material
(b) Input is reverse biased
(c) Of impurity atoms
(d) None of the above
Answer:

Option (b)

Showing 31 to 40 out of 99 Questions
1 2 3 4 5 6