Basic Electronics (3110016) MCQs

MCQs of Bipolar junction transistors and its biasing

Showing 21 to 30 out of 117 Questions
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21.
The relation between β and α is ________.
(a) β = 1/(1-α)
(b) β = (1-α)/α
(c) β = α/(1-α)
(d) β = 1/(1+α)
Answer:

Option (c)

22.
The value of β for a transistor is generally _________.
(a) 1
(b) Less than 1
(c) Between 20 and 500
(d) Above 500
Answer:

Option (c)

23.
The most commonly used transistor arrangement is _______ arrangement.
(a) Common emitter
(b) Common base
(c) Common collector
(d) None of the above
Answer:

Option (a)

24.
The input impedance of a transistor connected in ______ arrangement is the highest.
(a) Common emitter
(b) Common base
(c) Common collector
(d) None of the above
Answer:

Option (b)

25.
The output impedance of a transistor connected in _______ arrangement is the highest.
(a) Common emitter
(b) Common base
(c) Common collector
(d) None of the above
Answer:

Option (c)

26.
The phase difference between the input and output voltage in a common base arrangement is ___.
(a) 180⁰
(b) 90⁰
(c) 270⁰
(d) 0⁰
Answer:

Option (d)

27.
The power gain of a transistor connected in ________ arrangement is the highest.
(a) Common emitter
(b) Common base
(c) Common collector
(d) None of the above
Answer:

Option (a)

28.
The phase difference between the input and output voltage of a transistor connected in common emitter arrangement is ________.
(a) 0⁰
(b) 180⁰
(c) 90⁰
(d) 270⁰
Answer:

Option (b)

29.
The voltage gain of a transistor connected in ________ arrangement is the highest.
(a) Common base
(b) Common collector
(c) Common emitter
(d) None of the above
Answer:

Option (c)

30.
As the temperature of a transistor goes up, the base-emitter resistance _______.
(a) Decreases
(b) Increases
(c) Remains the same
(d) None of the above
Answer:

Option (a)

Showing 21 to 30 out of 117 Questions
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