0 0 votes The op-amp shown in the figure is ideal. The input impedance $\frac{v_{\text{in}}}{i_{\text{in}}}$ is given by $Z \frac{R_1}{R_2}$ $ – Z \frac{R_2}{R_1}$ $Z$ $ – Z \frac{R_1}{R_1 + R_2}$ Analog and Digital Electronics gate2018-ee analog-and-digital-electronics electric-circuits + – Arjun 197 views answer comment Share Follow 0 reply Please log in or register to add a comment.