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What would be the computational value of feedback voltage in a negative feedback amplifier with A = 100, β = 0.03 and input signal voltage = 30 mV?

What would be the computational value of feedback voltage in a negative feedback amplifier with A = 100, β = 0.03 and input signal voltage = 30 mV? Correct Answer 0.09 V

Concept:

Output voltage signal is given by

V0 = A Vi

Feedback voltage is given by

Vf = β V0 = Aβ Vi

Calculation:

Given A = 100

β = 0.03

Vi = 30 mV = 0.03 V

Vf = 100 × 0.03 × 0.03 = 0.09 V

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