Electronics and Communication Engineering - Analog Electronics - Discussion

Discussion Forum : Analog Electronics - Section 1 (Q.No. 16)
16.
The output V0 in figure is
-100 V
-100 mV
10 V
10 mV
Answer: Option
Explanation:

Input to non-inverting op-amp is -10 x 10-6 x 103 = -10 mV.

Therefore output = = -100 mV.

Discussion:
10 comments Page 1 of 1.

Vishakadatta said:   8 years ago
@Mukund.

There is milli(m), so its 100mV.

Mukund said:   8 years ago
I think the answer is option A.
(2)

Jyothi R said:   9 years ago
Let first op amp output is v01;

By using KCL ((0 - v01)/(1k)) = (10 micro amps);
v01 = -10mV;
v01 is the input to the second op amp that to non inverting.

If we give non-inverting input, here output will be (1 + (R2/R1)v01;
So, v0 = (1 + (90/10))(-10mV) = -100mV.

Ritesh maurya said:   1 decade ago
Second stage is nothing it just out put of non inverting opamp.

Vout = (1+rf/r1)*Vinput.

Vout = (1+90/10)*-10.

Roopak said:   1 decade ago
vo = vin(1+R1/R2) where vin = -10mv, R1 = 90, R2 = 10.

Vim said:   1 decade ago
Anyone can please explain the solution?

Bindu said:   1 decade ago
What is the formulae used for to get output voltage?

Mukesh said:   1 decade ago
Please tell 2nd step how -100mv will come?

Manjappa hosakeri said:   1 decade ago
First inverting amplifier is op-amp is -10 x 10-6 x 103 = -10 mV.

Mianl said:   1 decade ago
What about first inverting amplifier?

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