A city gets its electricity from a dam where water is stored in a reservoir. How does the water provide city with its power
The water stored in the reservoir has potential energy. To generate electricity, the dam releases water from the reservoir, allowing it to flow downhill through large pipes called penstocks. The force of the flowing water turns turbines, which are connected to electric generators.
The spinning turbines convert the kinetic energy of the water into mechanical energy. This mechanical energy is then used to rotate magnets inside the generator, creating a magnetic field. As the magnets rotate, they generate an electric current in stationary copper coils, producing electrical energy or electricity.
The generated electricity is then transmitted through a network of power lines to the city, where it is distributed to homes, businesses, and other consumers. Transformers are used to increase or decrease the voltage of the electricity for efficient transmission and to match the requirements of different users.
So, essentially, the water stored in the reservoir is used to drive turbines that convert the potential energy of the water into electrical energy, providing the city with power.