1
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The input resistance Ri of the amplifier shown in the figure is GATE ECE 2005 Analog Circuits - Operational Amplifier Question 85 English
A
30/4 K$$\Omega $$
B
10 K$$\Omega $$
C
40 K$$\Omega $$
D
infinite
2
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The voltage e0 indicated in the figure has been measured by an ideal voltmeter. Which of the following can be calculated? GATE ECE 2005 Analog Circuits - Operational Amplifier Question 54 English
A
Bias current of the inverting input only.
B
Bias current of the inverting and non-inverting inputs only.
C
Input offset current only.
D
Both the bias currents and the input offset current.
3
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The effect of current shunt feedback in an amplifier is to
A
increase the input resistance and decrease the output resistance
B
increase both input and output resistances
C
decrease both input and output resistances
D
decrease the input resistances and increase the output resistance.
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
The Op-Amp circuit shown in figure is a filter. The type of filter and its cut-off frequency are respectively. GATE ECE 2005 Analog Circuits - Operational Amplifier Question 53 English
A
high pass, 1000 rad/sec.
B
low pass, 1000 rad/sec.
C
high pass, 10 rad/sec.
D
low pass, 10 rad/sec.