How electricity is generated from running water?

Well i don't know what answers community is doing down there but here is the answer !

The force of flowing water is used to rotate the blades of a turbine and that turbine is then connected to a generator which work on the principle of induced EMF which is due to the movement of coil in the generator.
If you have seen the pirates of Caribbean then in one of the movies Jack Sparrow is stuck on a big wooden wheel, that is what was used in older times to generated electricity at a household level.