1
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
An Op-Amp has an offset voltage of 1mV and is ideal in all other respects. If this OP-Amp is used in the circuit shown in fig. The O/P voltage will be (Select the nearest value). GATE ECE 1992 Analog Circuits - Operational Amplifier Question 57 English
A
1 mV
B
1 V
C
$$ \pm $$ 2 mV
D
0 V
2
GATE ECE 1992
Subjective
+5
-0
Consider the circuit shown in Fig. The circuit uses an ideal operational amplifier. Assuming that the impedances at noodes A and B do not load the preceeding bridge circuit, calculate the output voltage Vo.

when $${R_a}\, = \,{R_b}\, = \,{R_c}\,{R_d}\,$$ ohms.
when $${R_a}\, = \,{R_b}\, = {R_c}\, = 100$$ ohms and $${R_{d\,}}\, = \,120$$ ohms.

GATE ECE 1992 Analog Circuits - Operational Amplifier Question 14 English
3
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-0.6
The circuit of fig. uses an ideal OP_Amp for small positive values of Vin, the circuit works as GATE ECE 1992 Analog Circuits - Operational Amplifier Question 58 English
A
a half wave rectifier
B
a differentiator
C
a logarithmic amplifier
D
an exponential amplifier
4
GATE ECE 1992
Numerical
+2
-0
If the transistors in fig. has high value of β and a vBE of 0.65, the current I flowing through the 2 kilo ohms resistance will be ______. GATE ECE 1992 Analog Circuits - Bipolar Junction Transistor Question 47 English
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