1
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.
2
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
3
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown below the op-amps are ideal. Then Vout in Volts is GATE ECE 2013 Analog Circuits - Operational Amplifier Question 28 English
A
4
B
6
C
8
D
10
4
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
The bit rate of a digital communication system is R kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
A
R/10 Hz
B
R/10 kHz
C
R/5 Hz
D
R/5 kHz
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