1
GATE EE 2017 Set 2
+2
-0.6
For the circuit shown below, assume that the $$OPAMP$$ is ideal.

Which one of the following is TRUE?

A
$${v_0} = {v_s}$$
B
$${v_0} = 1.5\,{v_s}$$
C
$${v_0} = 2.5\,{v_s}$$
D
$${v_0} = 5\,{v_s}$$
2
GATE EE 2017 Set 1
+2
-0.6
The approximate transfer characteristic for the circuit shown below with an ideal operational amplifier and diode will be
A
B
C
D
3
GATE EE 2015 Set 2
+2
-0.6
The saturation voltage of the ideal op-amp shown below is $$\pm 10\,V.$$ The output voltage $${V_O}$$ of the following circuit in the steady-state is
A
square wave of period $$0.55$$ $$ms.$$
B
triangular wave of period $$0.55$$ $$ms.$$
C
square wave of period $$0.25$$ $$ms.$$
D
triangular wave of period $$0.25$$ $$ms.$$
4
GATE EE 2015 Set 1
+2
-0.6
The op-amp shown in the figure has a finite gain $$A = 1000$$ and an infinite input resistance. A step voltage $${V_i} = 1\,\,mV$$ is applied at the input at time $$t = 0$$ as shown. Assuming that the operational amplifier is not saturated, the time constant (in millisecond) of the output voltage $${V_o}$$ is
A
$$1001$$
B
$$101$$
C
$$11$$
D
$$1$$
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