-The circuit in Figure has the following values: R1 = 7 kΩ, R2 = 1 kΩ, CB = 1 μF, and supply voltages of ±10 V. The input is + 1 V. What is the approximate output voltage?
A) + 9 V
B) - 9 V
C) + 5 V
D) - 5 V

Question

-The circuit in Figure  has the following values: R1 = 7 kΩ, R2 = 1 kΩ, CB = 1 μF, and supply voltages of ±10 V. The input is + 1 V. What is the approximate output voltage?
A) + 9 V 
B) - 9 V 
C) + 5 V 
D) - 5 V

Quizplus · Accepted Answer

Given the circuit parameters and assuming it's an inverting amplifier configuration (common for questions like this), the output voltage (Vout) can be calculated using the formula Vout = -Vin(R2/R1). Plugging in the given values: Vout = -1V * (1kΩ / 7kΩ) = -1/7 V ≈ -0.143 V. However, none of the options closely match this calculation, suggesting a possible misunderstanding of the circuit configuration or an error in the question's details. Given the options, the closest logical answer based on typical operational amplifier behavior and assuming maximum swing from the supply voltage due to saturation or a different configuration would be -9 V, as op-amps can't output more than their supply voltage and the negative sign indicates inversion or a negative gain configuration.

-The Circuit in Figure Has the Following Values: R1