Why DC amplifier uses offset null circuitry?
A. To reduce the distortion in output
B. To improve the accuracy of amplifier
C. To get large output gain
D. All of the mentioned
Answer:A
Why DC amplifier uses offset null circuitry?
A. To reduce the distortion in output B. To improve the accuracy of amplifier C. To get large output gain D. All of the mentioned
Explanation: A DC amplifier uses offset null circuitry to reduce the output offset voltage to zero, that is , to improve the accuracy of DC amplifier. 4. Why are coupling capacitor used in audio receiver system?