You think you have
electric engine aren't my thing I'd have to think about it. But i'm sure i'll find why it's wrong,
My first guess off the top of my head if you apply V & A and no rpm must turn to heat not saying that's right.
A gas engine no rpm no potential energy can't when no power stroke are happening and when running potential goes up with rpm cause it's displaces more fuel and air higher up in it's powerband.
I'm good leaving it here