1
GATE ECE 2007
+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 A
$${{1 - sRC} \over {1 + sRC}}$$
B
$${{1 + sRC} \over {1 - sRC}}$$
C
$${1 \over {1 - sRC}}$$
D
$${1 \over {1 + sRC}}$$
2
GATE ECE 2007
+2
-0.6
Consider the OP-Amp circuit shown in the figure. 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
3
GATE ECE 2006
+2
-0.6
For the circuit shown in the following figure, the capacitor C is initially uncharged. At t = 0, the switch S is closed. The voltage VC across the capacitor at t = 1 millisecond is In the figure shown above, the OP-AMP is supplied with $$\pm$$ 15V.

A
0 Volts
B
6.3 Volts
C
9.45 Volts
D
10 Volts
4
GATE ECE 2005
+2
-0.6
In an ideal differential amplifier shown in the figure, a large value of (RE). A
increases both the differential and common-mode gains.
B
increases the common-mode gain only.
C
decreases the differential-mode gain only.
D
decreases the common-mode gain only
GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Communications
Electromagnetics
General Aptitude
Engineering Mathematics
EXAM MAP
Medical
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