Basic Electronics (3110016) MCQs

MCQs of AC Analysis of BJT circuits and small signal amplifier

Showing 1 to 10 out of 120 Questions
1 2 3 4 5 6
1.
For DC, the current in a coupling circuit is
(a) Zero
(b) Maximum
(c) Minimum
(d) Average
Answer:

Option (a)

2.
The current in a coupling circuit for high frequencies is
(a) Zero
(b) Maximum
(c) Minimum
(d) Average
Answer:

Option (b)

3.
A coupling capacitor is
(a) A DC short
(b) An AC open
(c) A DC open and an AC short
(d) A DC short and an AC open
Answer:

Option (c)

4.
In a bypass circuit, the top of a capacitor is
(a) An open
(b) A short
(c) An AC ground
(d) A mechanical ground
Answer:

Option (c)

5.
The capacitor that produces an AC ground called a
(a) Bypass capacitor
(b) Coupling capacitor
(c) DC open
(d) AC open
Answer:

Option (a)

6.
The capacitor of a CE amplifier appear to be
(a) Open to AC
(b) Shorted to AC
(c) Open to supply voltage
(d) Shorted to AC
Answer:

Option (d)

7.
Reducing all dc sources to zero is one of the steps in getting the
(a) DC equivalent circuit
(b) AC equivalent circuit
(c) Complete amplifier circuit
(d) Voltage divider biased circuit
Answer:

Option (b)

8.
The AC equivalent circuit is derived from the original circuit by
(a) Resistors
(b) Capacitors
(c) Inductors
(d) Transistors
Answer:

Option (b)

9.
A single stage transistor amplifier contains _______ and associated circuitry.
(a) Two transistors
(b) One transistor
(c) Three transistors
(d) None of the above
Answer:

Option (b)

10.
The phase difference between the output and input voltages of a CE amplifier is
(a) 180°
(b) 0°
(c) 90°
(d) 270°
Answer:

Option (a)

Showing 1 to 10 out of 120 Questions
1 2 3 4 5 6