For the system shown gain with feedback is 200. Find feedback factor. A1=20 B = ? A2=60
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- The gain of an amplifier without feedback is 2000. When negative feedback is applied, gain becomes 97. What is the value of the feedback factor? Round to 2 decimal places.Please solve all the questions in the picture and also of the negative feedback amplifier (in detail) Show the application of negative feedback reduces the fluctuation of the gain (dA/A) of theactual amplifier by the factor of (1+ A*beta ) where beta is the feedback factor. What is theadvantage. Take A = 13Amplifirs Given that a feedback network is shunt-series, and the output load is 10kΩ, what is the output voltage across it given that the transfer gain is 10, the source current is 20mA and the feedback current is 10mA?
- For the circuit ishown (a) find the voltage gain, input resistance, and output resistance of the feedback amplifier. Assume RI = 1kΩ, RL = 5kΩ, R1 =5kΩ, and R2 =45 kΩ.An amplifier has voltage gain with the feedback of 100. If the gain without feedback changes by 409 and the gain with feedback should not vary more than 8%, the values of open-loop gain and feedback ratio will be respectively given byA. If the forward gain is 5 and feedback gain is 1, determine the close-loop gain of a negative feedback amplifier. answer: B. For a Wien-bridge oscillator (as presented in the lecture), if the feedback resistor has a value of 10-kohm, determine the value of Ri (in kilo-ohm). answer:
- The transistor parameters for the circuit shown are VTN = 0.4 V, Kn =0.5 mA/V2, and λ = 0.(a) Discuss the feedback topology, show the input ant output connections (series orshunt)(b) Find the feedback factor β (find the transfer function without feedback first)Feedback:2. An ideal series-shunt feedback amplifier has Rs negligibly small. If Vi = 100mV, Vfb =99mV, and Vo= 5V determine:a. Av , β, Avf (including the units)b. Rif, Rof if Ri = 5 Kohm & Ro = 4 Kohm.Give corect answer please Given that a feedback network is shunt-series, and the output load is 10kΩ, what is the output voltage across it given that the transfer gain is 10, the source current is 20mA and the feedback current is 10mA?
- For an ideal non-inverting amplifier, what will happen to the gain if the feedback resistor is equal to the input resistor? the gain is -1 the gain is 0 the gain is infinite the gain is 2A = 100,000. Resistor values are RI – 1000 Ω and Rf = 10,000 Ω. What is the feedback return, and what is the amplification of the feedback amplifier?A certain op-amp is used in a feedback configuration having a gain of 20 and a bandwidth of 500 kHz. a)If the external resistor values are changed to increase the gain to 40, what is the new bandwidth? The new bandwidth is 250khz What is the unity-gain bandwidth of the op-amp ??