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Homework Statement
The OP amp in the circuit is ideal. Calculate V0 if Va = 2V and Vb = 1VHomework Equations
V = IR
KCL, KVL,
voltage division, current division,Op-Amp Output V = (Gain)(V+ - V-)(Gain) = -Rf / Rin
Ideal op amp properties:
Input Resistance RI = ∞
Output Resistance Ro = 0
Gain A = ∞Difference Amplifier:
Vout=(V2*Rground(Rf + R1))/(R1(Rground + R2)) - (RfV1/R1)
The Attempt at a Solution
I still need help understanding op amps, basically. I don't think this is really a differential amplifier but for the formula (and nothing given about any R connected to ground) I think it would simply be
Vout = (-100k/20k)*2V = -10V ?Thank you
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