What is the current through the resistor marked 'R' in all three circuits just after the switch is reopened after being closed for a long time?
The Attempt at a Solution
The explanation that we were given for (1) is that I = V/2R and (2) I = V/3R and (3) I = V/(R/2) but I don't understand how this makes sense because when the circuit is opened, current shouldn't flow in unclosed parts. As I understand it the inductor should act as an energy source and form a closed loop with the resistors so that in (1) I = V/R and (2) I = V/2R and (3) I = V/(R/2). What am I missing here??