1. How is electricity generated from the power source?
2. Give the important roles of generator and turbines in the process of generating electricity?
3. What are the different sources of electricity in our country?
4. Differentiate step-down from the step-up transformer.
Share
Verified answer
1. How is electricity generated from the power source?
Most of U.S. and world electricity generation is from electric power plants that use a turbine to drive electricity generators. In a turbine generator, a moving fluid—water, steam, combustion gases, or air—pushes a series of blades mounted on a rotor shaft.
2. Give the important roles of generator and turbines in the process of generating electricity?
The force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy. Different types of turbines include steam turbines, combustion (gas) turbines, hydroelectric turbines, and wind turbines.
3. What are the different sources of electricity in our country?
Most of the nation's electricity was generated by natural gas, nuclear energy, and coal in 2020. Electricity is also produced from renewable sources such as wind, hydropower, solar power, biomass, wind, and geothermal.
4. Differentiate step-down from the step-up transformer.
The main difference between the step-up and step-down transformer is that the step-up transformer increases the output voltage, while the step-down transformer reduces the output voltage.