That's how train brakes work, actually. They short-circuit the electric motors through an array of resistors (with cooling fans to keep them from melting).. Thi

That's how train brakes work, actually. They short-circuit the electric motors through an array of resistors (with cooling fans to keep them from melting).. This is effectively engine braking on an electric motor. Electric cars do this too but they have batteries to absorb the energy instead of turning it all into heat.