. . is called static electricity.
An insulator prevents electricity from flowing.
Flowing electricity is called electric current.
The flowing of electricity (amperage) is governed by the internal resistance of the connected device.
Static
Your question is unclear. To prevent electricity flowing you open the circuit. This can be done by disconnecting it from the source by a switch, for example. An insulator will also prevent electricity flowing.
The free electrons flowing in the circuit decrease.
Electricity that comes from flowing water
Hydroelectricity.
hydroelectricity
Falling or flowing water turns a turbine generator, which generates electricity.
By spinning turbines witch generates electricity
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