Which of these has an output which follows input?

CS amplifier with a bypass capacitor

CS amplifier without a bypass capacitor

Which of these is false for a CS amplifier without a bypass capacitor compared to a CS amplifier with a bypass capacitor?

The output is 180 out of phase with respect to the input applied

Voltage gain magnitude decreases

The output resistance decreases

The output is 180 out of phase with respect to the input applied

Which of these is incorrect for a common gate amplifier?

It is used as a high-frequency amplifier

Choose the incorrect statement for JFET(s).

Transconductance does not depend on VDS

Maximum transconductance occurs at VGS=0

Transconductance decreases linearly with VGS

Transconductance increases linearly with IDS

Transconductance does not depend on VDS

Explore topic-wise MCQs in Analog Circuits.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.	In a CS amplifier, given that r_ds=0.5M and g_m=5m ^-1, the load is 10k , source resistance is 44 k . Calculate the internal amplification factor for the small signal model.
A.	2500
B.	8100
C.	9800
D.	7700
Answer» B. 8100

Discussion

2.	Which of these has an output which follows input?
A.	CS amplifier with a bypass capacitor
B.	CD amplifier
C.	CG amplifier
D.	CS amplifier without a bypass capacitor
Answer» C. CG amplifier

Discussion

3.	Which of these is false for a CS amplifier without a bypass capacitor compared to a CS amplifier with a bypass capacitor?
A.	Voltage gain magnitude decreases
B.	Input resistance remains same
C.	The output resistance decreases
D.	The output is 180 out of phase with respect to the input applied
Answer» D. The output is 180 out of phase with respect to the input applied

Discussion

4.	Which of these is incorrect for a common gate amplifier?
A.	It is a current buffer
B.	It has output resistance
C.	Its input resistance is high
D.	It is used as a high-frequency amplifier
Answer» D. It is used as a high-frequency amplifier

Discussion

5.	For an RC coupled common source JFET amplifier without bypass capacitor, find the voltage gain if g_m = 1m ^-1, source resistance is 2k , drain resistance is 15k and load is 10k .
A.	-2
B.	-2.5
C.	5
D.	2
Answer» B. -2.5

Discussion

6.	Choose the incorrect statement for JFET(s).
A.	Maximum transconductance occurs at V<sub>GS</sub>=0
B.	Transconductance decreases linearly with V<sub>GS</sub>
C.	Transconductance increases linearly with I<sub>DS</sub>
D.	Transconductance does not depend on V<sub>DS</sub>
Answer» D. Transconductance does not depend on V<sub>DS</sub>

Discussion

7.	What are the small signal FET parameters?
A.	g<sub>m</sub> and r<sub>ds</sub>
B.	g<sub>m</sub> and V<sub>gs</sub>
C.	V<sub>ds</sub> and r<sub>ds</sub>
D.	g<sub>m</sub>
Answer» B. g<sub>m</sub> and V<sub>gs</sub>

Discussion

Explore topic-wise MCQs in Analog Circuits.

In a CS amplifier, given that rds=0.5M and gm=5m -1, the load is 10k , source resistance is 44 k . Calculate the internal amplification factor for the small signal model.

Which of these has an output which follows input?

Which of these is false for a CS amplifier without a bypass capacitor compared to a CS amplifier with a bypass capacitor?

Which of these is incorrect for a common gate amplifier?

For an RC coupled common source JFET amplifier without bypass capacitor, find the voltage gain if gm = 1m -1, source resistance is 2k , drain resistance is 15k and load is 10k .

Choose the incorrect statement for JFET(s).

What are the small signal FET parameters?

In a CS amplifier, given that r_ds=0.5M and g_m=5m ^-1, the load is 10k , source resistance is 44 k . Calculate the internal amplification factor for the small signal model.

For an RC coupled common source JFET amplifier without bypass capacitor, find the voltage gain if g_m = 1m ^-1, source resistance is 2k , drain resistance is 15k and load is 10k .