Find the value of feedback ratio.
If an amplifier has an output voltage of 0.98 V, then what will be value of feedback ratio if its feedback voltage is 0.10 with an increment of voltage gain 200 ?
a. 0.1 & 10
b. 0.20 & 50
c. 0.1 & 0.20
d. 0.1 & 20
Correct Answer : d. 0.1 & 20
Explanation :
Estimation of feedback ratio (β) =Vr / Vo and Vf = Voltage gain * feedback ratio.
