1. The problem statement, all variables and given/known data Hey there.. need helps here.. The question is.. Derive an expression relating the output voltage, Vo to the input current, Iin. 3. The attempt at a solution i try to derive it.. but.. got problem with RL V1 = -IinRf Vo =- R2/R1(-IinRf) how to include Rl in my derivation?