1. The problem statement, all variables and given/known data Look up the offset current for the LM353 op-amp and predict the time rate of change of the output for the circuit below after the switch opens. (Find dVo/dt) 2. Relevant equations offset current = 50 pA i+ = i-, ideally v+ = v-, ideally 3. The attempt at a solution I really don't know where to begin. Vo = V- in this case, so I think the 50 pA are flowing through the other branch. When the switch is flipped, the capacitor discharges, losing voltage. But how can I derive dV/dt when ideal op-amps have infinite gain?  Had some more insight on this, but still wanna check to see if it's right: If the gain of the op amp is A: I = C dV(+)/dt dV+/dt = 5 V/s Vo = A(v+ - v-) = A(v+ - Vo) Vo = v+ * A / (1 + A) dV0/dt = dv+/dt * A / (1 + A) If A is large then A / (1 + A) = 1 so dV/dt = 5 V/s.