[UPSC CSE 2023] Semiconductors/Solar cell (Q160, 10+5=15M)

{cse-q-8-100-fig-1} (i) Determine the input and output impedances of the amplifier in given figure. The op-amp datasheet gives Z_{\text{in}} = 2\text{ M}\Omega, Z_{\text{out}} = 75\ \Omega and A_{\text{ol}} = 200,000 (open loop voltage gain). (ii) Find the closed-loop voltage gain.