Electric Windows generally, have a switch that operates a motor. The motor raises the or lowers the window using either a system of gears or a pulley system.
The fuse controlling the power supply to the mechanism could've died. It is also possible the mechanism has been damaged inside the door. Take it to the dealership to have it looked at. It might be...
Here's how to test and repair power windows
http://www.ricksfreeautorepairadvice.com/repair-topics/window-power-repair/replace-a-power-window-regulator
Very much like an electric stove. Electricity is passed through a resistive coil, which gets hot. The coil is immersed in a tank of water, so the heat is transferred, by conduction, to the water...
Basically a water heater is a big water tank with insulation wrapped around it. cold water will then flow into it and will activate a thermostat. The thermostat will then either kick on an electric...