Basic Electronics (3110016) MCQs

MCQs of Bipolar junction transistors and its biasing

Showing 61 to 70 out of 117 Questions
4 5 6 7 8 9
61.
The operating point is also called the _______.
(a) Cut off point
(b) Quiescent pointq
(c) Saturation point
(d) None of the above
Answer:

Option (b)

62.
For the proper amplification by a transistor circuit, the operating point should be located at ______ of the DC load line.
(a) The end point
(b) Middle
(c) The maximum current point
(d) None of the above
Answer:

Option (b)

63.
The operating point _______ on the AC load line.
(a) Also lies
(b) Does not lie
(c) May or may not lie
(d) Data insufficient
Answer:

Option (a)

64.
The disadvantage of voltage divider bias is that it has _______.
(a) High stability factor
(b) Low base current
(c) Many resistor
(d) None of the above
Answer:

Option (c)

65.
Thermal runaway occurs when ________.
(a) Collector is reverse biased
(b) Transistor is not biased
(c) Emitter is forward biased
(d) Junction capacitance is high
Answer:

Option (b)

66.
The base resistor method is generally used in _______.
(a) Amplifier circuits
(b) Switching circuits
(c) Rectifier circuits
(d) None of the above
Answer:

Option (b)

67.
In a base resistor method, if the value of β changes by 50, then collector current will change by a factor of _______.
(a) 25
(b) 50
(c) 100
(d) 200
Answer:

Option (b)

68.
The stability factor of a collector feedback bias circuit is ________ that of base resistor bias.
(a) The same as
(b) More than
(c) Less than
(d) None of the above
Answer:

Option (c)

69.
In the design of a biasing circuit, the value of collector load RC is determined by _______.
(a) VCE consideration
(b) VBE consideration
(c) IB consideration
(d) None of the above
Answer:

Option (a)

70.
If the value of collector current IC increases, then value of VCE ________.
(a) Remains the same
(b) Is increased
(c) Is decreased
(d) None of the above
Answer:

Option (b)

Showing 61 to 70 out of 117 Questions
4 5 6 7 8 9