GATE Electrical Engineering (EE) 2015 Shift 1 Solved Paper

The op-amp shown in the figure has a finite gain A = 1000 and an infinite input resistance. A step-voltage V_i = 1mV is applied at the input at time t = 0 as shown. Assuming that the operational amplifier is not saturated, the time constant (in millisecond) of the output voltage ${\mathit{V}}_0$ is