1
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown below, the silicon npn transistor Q has a very high value of $$\beta $$. The required value of R2 in k$$\Omega $$ to produce Ic = 1mA is GATE ECE 2013 Analog Circuits - Bipolar Junction Transistor Question 23 English
A
20
B
3
C
40
D
50
2
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
The ac schematic of an NMOS common-source stage is shown in the figure below, where part of the biasing circuits has been omitted for simplicity. For the n -channel MOSFET M, the transconductance gm = 1 mA/V, and body effect and channel length modulation effect are to be neglected. The lower cutoff frequency in Hz of the circuit is approximately at GATE ECE 2013 Analog Circuits - FET and MOSFET Question 9 English
A
8
B
32
C
50
D
200
3
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
In a voltage-voltage feedback as shown below, which one of the following statements is TRUE, if the gain k is increased? GATE ECE 2013 Analog Circuits - Feedback Amplifier Question 14 English
A
The input impedance increases and output impedance decreases.
B
The input impedance increases and output impedance also increases.
C
The input impedance increases and output impedance also increases.
D
The input impedance increases and output impedance increases.
4
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
In the circuit shown below, what is the output voltage (vout ) if a silicon transistor Q and an ideal op-amp are used?GATE ECE 2013 Analog Circuits - Operational Amplifier Question 67 English
A
-15 V
B
-0.7 V
C
+0.7 V
D
+15 V
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