Basic Electronics (3110016) MCQs

MCQs of Field effect transistors (FET) and its biasing

Showing 21 to 30 out of 99 Questions
1 2 3 4 5 6
21.
The easiest way to bias a JFET in the ohmic regions with
(a) Voltage-divider bias
(b) Self-bias
(c) Gate-bias
(d) Source-bias
Answer:

Option (c)

22.
Self-bias produces
(a) Positive feedback
(b) Negative feedback
(c) Forward feedback
(d) Reverse feedback
Answer:

Option (b)

23.
To get a negative gate-source voltage in a self-biased JFET circuit, you must have a
(a) Voltage divider
(b) Source resistor
(c) Ground
(d) Negative gate supply voltage
Answer:

Option (b)

24.
Transconductance is measured in
(a) Ohms
(b) Amperes
(c) Volts
(d) Mhos or Siemens
Answer:

Option (d)

25.
Transconductance indicates how effectively the input voltage controls the
(a) Voltage gain
(b) Input resistance
(c) Supply voltage
(d) Output voltage
Answer:

Option (d)

26.
A JFET has three terminals, namely _______
(a) Cathode, anode, grid
(b) Emitter, base, collector
(c) Source, gate, drain
(d) None of the above
Answer:

Option (c)

27.
A JFET is similar in operation to _______ valve
(a) Diode
(b) Pentode
(c) Triode
(d) Tetrode
Answer:

Option (b)

28.
A JFET is also called ______ transistor
(a) Unipolar
(b) Bipolar
(c) Unijunction
(d) None of the above
Answer:

Option (a)

29.
A JFET is a ______ driven device
(a) Current
(b) Voltage
(c) Both current and voltage
(d) None of the above
Answer:

Option (b)

30.
The gate of a JFET is _______ biased
(a) Reverse
(b) Forward
(c) Reverse as well as forward
(d) None of the above
Answer:

Option (a)

Showing 21 to 30 out of 99 Questions
1 2 3 4 5 6