The Attempt at a Solution
I don't understand why at the start, I20 was calculated like that, and why for a long time, IL=I20
Does that mean for the instant the switch was closed, the current just went through the resistors? And for a long time, the current skipped 40 ohm resistor? Why was that?
I think this is a basic knowledge but I can't remember what it is.
57.9 KB Views: 365