A unit step voltage u(t - 5) is applied to the R-L network below. The current is given by
1
1 - e-t
2
[1 - e-(t - 5)]u(t - 5)
3
[1 - e-t]u(t - 5)
4
1 - e-(t - 5)
A unit step voltage u(t - 5) is applied to the R-L network below. The current is given by