1
GATE ECE 2015 Set 2
Numerical
+1
-0
In the circuit shown, VO = VOA for switch SW in position A and V0= VOB for SW in position B. Assume that the opamp is ideal.

The value of $${{{V_{OB}}} \over {{V_{OA}}}}$$ is _____

GATE ECE 2015 Set 2 Analog Circuits - Operational Amplifier Question 67 English
Your input ____
2
GATE ECE 2015 Set 3
Numerical
+1
-0
In the circuit shown using am ideal opamp, the 3-dB cut-off frequency (in Hz) is _____. GATE ECE 2015 Set 3 Analog Circuits - Operational Amplifier Question 65 English
Your input ____
3
GATE ECE 2014 Set 4
MCQ (Single Correct Answer)
+1
-0.3
The circuit shown represents GATE ECE 2014 Set 4 Analog Circuits - Operational Amplifier Question 68 English
A
a bandpass filter
B
a voltage controlled oscillator
C
an amplitude modulator
D
a monostable multivibrator
4
GATE ECE 2014 Set 2
MCQ (Single Correct Answer)
+1
-0.3
In the differential amplifier shown in the figure, the magnitudes of the common-mode and differential-mode gains are 𝐴cm and 𝐴d, respectively. If the resistance RE is increased, then GATE ECE 2014 Set 2 Analog Circuits - Operational Amplifier Question 69 English
A
𝐴cm increases.
B
common-mode rejection ratio increases.
C
𝐴d increases.
D
common-mode rejection ratio decreases.
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