Basic Electronics (3110016) MCQs

MCQs of Bipolar junction transistors and its biasing

Showing 1 to 10 out of 117 Questions
1 2 3 4 5 6
1.
A transistor has _______.
(a) One PN junction
(b) Two PN junctions
(c) Three PN junctions
(d) Four PN junctions
Answer:

Option (b)

2.
The number of depletion layers in a transistor is ______.
(a) 4
(b) 2
(c) 3
(d) 1
Answer:

Option (b)

3.
The base of a transistor is ______ doped.
(a) Heavily
(b) Moderately
(c) Lightly
(d) None of the above
Answer:

Option (c)

4.
The element that has the biggest size in a transistor is ________.
(a) Collector
(b) Base
(c) Emitter
(d) Collector-base junction
Answer:

Option (a)

5.
In a PNP transistor, the current carriers are ________.
(a) Acceptor ions
(b) Donor ions
(c) Free electrons
(d) Holes
Answer:

Option (d)

6.
The collector of a transistor is ______ doped.
(a) Heavily
(b) Moderately
(c) Lightly
(d) None of the above
Answer:

Option (b)

7.
A transistor is a ________ operated device.
(a) Current
(b) Voltage
(c) Both voltage and current
(d) None of the above
Answer:

Option (a)

8.
In an NPN transistor, ________ are minority carriers.
(a) Free electrons
(b) Holes
(c) Donor ions
(d) Acceptor ions
Answer:

Option (b)

9.
The emitter of a transistor is ________ doped.
(a) Lightly
(b) Heavily
(c) Moderately
(d) None of the above
Answer:

Option (b)

10.
In a transistor, the base current is about ________ of emitter current.
(a) 25 %
(b) 20 %
(c) 35 %
(d) 5 %
Answer:

Option (d)

Showing 1 to 10 out of 117 Questions
1 2 3 4 5 6