The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k? August 11, 2021December 17, 2018 by admin The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k? A. ∞ B. 120kC. 110k D. 10k
