Electronic Devices - Op-Amp Applications - Discussion

Discussion Forum : Op-Amp Applications - General Questions (Q.No. 33)
33.
Determine the output voltage.

10(V2 – Vi)
–10(V2 – V1)
–10(V1 – V2)
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Gio said:   8 months ago
For op amp 1:

Vo= -(Rf/R1)v1,
Vo= (-500/250)v1 = -2v1.

for Op Amp 2:
Vo'=-rf((Vo/R2)+(Vs2/Rs2)),
Vo'= -500 ((-2V1/100)+(V2/50)),
Vo' = 10v1-10v2,
Ans: 10(V2-V1).

Satishkumar.chetla said:   9 years ago
For op-amp 1: Vo = -(rf/r1)v1=-(500/250)*v1=-2v1.
For op-amp 2: Vo' = -rf(-2v1/100+v2/50).
= 500*2v1/100-500/50.
= 10v1-10v2.
= -10(v2-v1).

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