Find the unit-ramp response of the RL circuit in Example 8.3.

Data From Example 8.3:

Consider a first-order system with time constant \(\tau\) and zero initial condition. Find the system's unit-step response for \(\tau=\frac{1}{3}\) and \(\frac{2}{3}\), plot the two curves versus \(0 \leq t \leq 2\) in the same graph, and comment.