The difference in the two answers you provided is the result of a fundamental assumption about how current flows through a wire. The problem you're dealing with here assumes that the current is evenly distributed over the wire's cross section. When you use Ampere's Law inside of the wire, you...
Sure! But maybe it would be beneficial to add a resistor in the "A" configuration so that the current reaches a fixed value? From what I could find, there is a transient period before t=0 where the voltages across the resistor and inductor are changing as the circuit moves from an open circuit...
Thank you Dale, I'm sorry for the silly question. I was being completely oblivious to the fact that the short circuit current through the inductor was even creating a magnetic field... which is embarrassing
An inductor and resistor are arranged in parallel to a constant voltage source. There is a switch connected to a terminal on the inductor that can create a closed loop that includes either the voltage source, or the resistor. The switch is left connecting the source and inductor for a long...