1
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
The Inverting Op-Amp shown in the figure, has an Open-loop gain of 100. The closed loop gain $${{{V_o}} \over {{V_s}}}$$ is GATE ECE 2001 Analog Circuits - Operational Amplifier Question 50 English
A
-8
B
-9
C
-10
D
-11
2
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
In the figure assume the Op-Amps to be ideal. The output V0 of the circuit is GATE ECE 2001 Analog Circuits - Operational Amplifier Question 49 English
A
10 $$\cos $$ (100 t)
B
10 $$\int\limits_0^t {\cos \,\,\left( {100\tau } \right)} \,\,d\tau $$ v
C
$${10^{ - 4}}\int\limits_0^t {\cos \,\,\left( {100\tau } \right)} \,\,d\tau $$
D
$${10^{ - 4}}{d \over {dt}}\cos \left( {100t} \right)$$
3
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
An Amplifier using an Op-Amp with a Slew-Rate SR = V/$$\mu $$sec, has a gain of 40 dB. If this amplifier has to faith fully amplify sinsoidal signals from dc to 20 KHz. Without introducing any Slew Rate induced distortion, then the input signal level must not exceed.
A
795 mV
B
395 mV
C
79.5 mV
D
39.5 mV
4
GATE ECE 2001
Subjective
+5
-0
Assume that the OP_AMP in the figure, ideal GATE ECE 2001 Analog Circuits - Operational Amplifier Question 4 English

(a) Obtain an expression for V0 in terms of Vs, R, and the reverse saturation current Is of the transiostor.

(b) If R = 1$$\Omega $$, Is = 1pA and the thermal voltage VT = 25mV, then what is the value of the output voltage V0 for an input voltage Vs = 1V?

(c) Suppose that the transistor in the feedback path is replaced by a p-n junction diode with a reverse saturation current of Is. The p-side of the diode is connected to node A and the n-side to node B. Then what is the expression for V0 in terms Vs, R and Is ?

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