1. The problem statement, all variables and given/known data a differential amplifier with differential gain Ad = 20000, is used for amplifying signals obtained from an electrocardiogram. If the input terminals are connected together and 1V signal is applied to them, an output signal of 0.05V results. Calculate the common-mode-gain of the amplifier and the common mode rejection ratio. 2. Relevant equations so, V0 = Ad*Vd + Acm*Vcm how to find Vd and Vcm?