Additional observations:

When I have two pieces of the helical copper wire in parallel, the losses increase when they really should decrease from the single piece of wire case. This is because of I^2 * R for the losses. The currents split for the same resistance, leading to a lower loss. However, the losses are greater for two parallel wires.

Link to simulation file (debug for one copper wire, debug2 for two copper wires): akrishnan60/test (github.com)

I've noticed that the losses are high at the beginning of the simulation at the microsecond timescale, then decreases to zero as time increases. Are these just solver startup issues?