Electronic Devices - Op-Amp Applications - Discussion

Discussion Forum : Op-Amp Applications - General Questions (Q.No. 7)
7.
Determine the output voltage for this circuit with a sinusoidal input of 2.5 mV.

–0.25 V
–0.125 V
0.25 V
0.125 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

RAhul said:   7 years ago
vo = -v1*rf/r1 this is inverting case.
-2.5mv*200/4.
-2.5mv*50.
-125mv.
1mv=1000,
0.125.
(2)

Sahal said:   9 years ago
Vout = -(Rf/Ri) * Vi.
= -(200/4) * 2.5 * 10^-3 V,
= -(50) * (0.0025),
= -0.125 V.
(1)

Nirmla said:   1 decade ago
Vout - (Rf/Ri)*V1.

200/4*2.5*1000V.

-0.125V.
(1)

Anwar said:   1 decade ago
Here in the given circuit the resistance 4K is the input resistance and feedback resistance is 200k with the input voltage of 2.5mV then the output can be caluculated as -R2/R1 (vi).
(1)

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