Amplifiers » Exercise - 112. When an amplifier is provided with current series feedback, its : (a) input impedance increases and output impedance decreases (b) input and output impedances both decrease (c) input impedance decreases and output impedance increases (d) input and output impedances both increase
Amplifiers » Exercise - 131. When current feedback (negative) is applied to an amplifier, its output impedance ...... (a) is increased (b) is decreased (c) remains the same (d) none of the above
Amplifiers » Exercise - 126. When voltage feedback (negative) is applied to an amplifier, its input impedance ....... (a) is decreased (b) is increased (c) remains the same (d) none of the above
5555555555126. As the frequency increases, the input impedance of an op-amp ________ and the output impedance ________. (a) increases, increases (b) increases, decreases (c) decreases, decreases (d) decreases, increases
Amplifiers » Exercise - 133. If voltage feedback (negative) is applied to an amplifier, its output impedance ........ (a) remains the same (b) is increased (c) is decreased (d) none of the above