6.1 The RL Circuit: Example 6-1 cont.
However, first get the inductor’s DC steady-state current just before closing the switch
This current is i(0-) and, because the inductor’s current is continuous, it’s also its current just after the switch is closed, i.e.; i(0+) = i(0-)
The DC steady-state for t < 0 is (next slide) ...