What will be the output voltage of the circuit shown in Figure E7-3 if R1 is 1,000 ohms, RF is 10,000 ohms, and 0.23 volts DC is applied to the input?

Question

Accepted Answer

D. -2.3 volts Gain = -RF / R1 = -10,000 / 1,000 = -10. Vout = -10 x 0.23 V = -2.3 V; the minus sign is because the amplifier inverts.