Operational Amplifier » Exercise - 120. If feedback resistor in Q.15 is open, the voltage gain ........... (a) increases (b) decreases (c) is not affected (d) depends on R
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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