How To Build A Hydroelectric Water Wheel
Hydro-power or water power is power derived from the energy of falling water and running water, which may be harnessed for useful purposes. Kinetic energy of flowing water (when it moves from higher potential to lower potential) rotates the blades/propellers of turbine, which rotates the axle.
The axle has a coil which is placed between the magnets. When the coils rotate in magnetic field it induce them in the coil due to change in flux. Hence, kinetic energy of flowing water is converted to electrical energy. Click the link below to read this great article on Hydroelectric.