Question

: If you look at the motor carefully (either the “World’s Simplest Motor” or the homopolar motor), what you have done is short the two ends of battery (the one thing I kept telling you not to do for safety reasons). But it turns out, as long as the motor is running, this is safe: the current output from the battery is limited, and the battery will not overheat even in extended operation. Explain the physical mechanism that limits the amount of current flow in the motor wires

Answer 1