Question: In an ideal op amp the open-loop gain is 103. The op amp is used in a feedback circuit, and the voltages appearing at two of its three signal terminals are measured as v2 = 0V and v3 = 2V where it is assumed that v1 and v2 are input terminals and v3 is the output terminal. The value of the differential (vd) and common-mode (vcm)signal is
Options
A : Vd = 2 mV and vcm = 1 mv
B : Vd = 2 mV and vcm = -1 mV
C : Vd = 2 mV and vcm = 2mV
D : Vd = 2 mV and vcm = -2mV
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