1
GATE ECE 2014 Set 1
+2
-0.6
In the circuit shown, the op-amp has finite input impedance, infinite voltage gain and zero input offset voltage. The output voltage Vout is
A
$$- {I_2}\left( {{R_1} + {R_2}} \right)$$
B
$${I_2}{R_2}$$
C
$${I_1}{R_2}$$
D
$$- {I_1}\left( {{R_1} + {R_2}} \right)$$
2
GATE ECE 2013
+2
-0.6
In the circuit shown below the op-amps are ideal. Then Vout in Volts is
A
4
B
6
C
8
D
10
3
GATE ECE 2012
+2
-0.6
The circuit shown is a
A
low pass filter with
$${f_3}dB = \,{1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
B
high pass filter with
$${f_3}dB = \,{1 \over {{R_1}C}}rad/s$$
C
low pass filter with
$${f_3}dB = {1 \over {{R_1}C}}rad/s$$
D
high pass filter with
$${f_3}dB = {1 \over {\left( {{R_1} + {R_2}} \right)C}}rad/s$$
4
GATE ECE 2008
+2
-0.6
Consider the following circuit using an ideal Op-Amp. The I-V characteristics of the diode is described by the relation $$I = {I_0}\left[ {{e^{{V \over {VT}}}} - 1} \right], where \,{V_T}\,\, = \,\,25mV,{I_0}\,\, = 1 \mu {\rm A}$$\$

and V is the voltage across the diode (taken as positive for forward bias). For an input voltage $${V_i}\,\, = \,\, - 1V,$$ the output voltage V0 is

A
0 V
B
0.1 V
C
0.7 V
D
1.1 V
EXAM MAP
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