W=I^2*R but a motor is not a resistor
Sorry Dana, I have to disagree. W = I^2*R, but a motor is not a resistor. When just starting or anytime running slower than its proper speed, a motor looks a lot like a short circuit. I work with industrial strength motors and have recently taken classes. A motor is also a generator and what limits the current is not so much the internal resistance but the "Counter Electromotive Force" [voltage] being generated.
The simplest case is small DC motors (eg model trains) which have an internal resistance of about 10 ohms. When you first put 12 volts on them, they draw over an amp for a fraction of a second. Once they are up to "full" speed [proportional to the voltage] they draw about 1/4 of an amp. I maintained controls for these puppies for four years as a full time industrial controls technician.
Doug.
The Shadow truly does know
Thanks for information on the classes that you have taken. This is really helpful. It is also cool to know that you are trying to get a teaching/technical job after "retiring". Thanks, Ron