1
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
Consider the Schmitt trigger circuit shown below. GATE ECE 2008 Analog Circuits - Operational Amplifier Question 35 English

A triangular wave which goes from -12V to 12V is applied to the inverting input of the OP-AMP. Assume that the output of the OP-AMP swings from +15V to -15V. The voltage at the non-inverting input switches between.

A
-12V and +12V
B
-7.5V and +7.5V
C
-5 V and +5 V
D
0 V and 5 V
2
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
In the Op-Amp circuit shown, assume that the diode current follows the equation I = Is exp (V/VT) . For Vi = 2V, Vo = V01, and for Vi = 4 V, Vo = V02. The relationship between V01 and V02 is GATE ECE 2007 Analog Circuits - Operational Amplifier Question 40 English
A
$${V_{02}} = \,\sqrt 2 \,{V_{01}}$$
B
$${V_{02}} = {e^2}{V_{01}}$$
C
$${V_{02}} = {V_{01}}In\,2$$
D
$${V_{01}} - {V_{02}} = {V_T}In\,2$$
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
Consider the OP-Amp circuit shown in the figure.GATE ECE 2007 Analog Circuits - Operational Amplifier Question 38 English

If $${V_i} = {V_1}\,\,\sin \left( {\omega \tau + \phi } \right),$$ then the minimum and maximum values of $$\phi $$ (in radians) are respectively

A
$$ - \pi /2\,\,and\,\,\pi /2$$
B
0 and $$\pi /2$$
C
$$ - \pi $$ and 0
D
$$ - \pi /2\,\,$$ and 0
4
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
Consider the OP-Amp circuit shown in the figure.

The transfer function $${V_o}\left( s \right)/{V_i}\left( s \right)$$ is

GATE ECE 2007 Analog Circuits - Operational Amplifier Question 39 English
A
$${{1 - sRC} \over {1 + sRC}}$$
B
$${{1 + sRC} \over {1 - sRC}}$$
C
$${1 \over {1 - sRC}}$$
D
$${1 \over {1 + sRC}}$$
GATE ECE Subjects
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