Why are power stations built?
What are the four stages involved:
Where does the energy come from to boil the water?
What renewable sources may drive the generator directly?
They are built to generate electricity
1: the fuel is burned to boil water to make steam
2: the steam makes a turbine spin
3: the spinning turbine turns a generator which produces electricity
4: the electricity goes to the transformer to produce the correct voltage
Fossil fuels or nuclear fuels
Wind or wave power
What is a transformer?
What does a transformer do?
What is a step-up transformer?
What is a step-down transformer?
Describe the national grid?
What is lost when a current goes through a wire?
The higher the current?
A transformer is an electrical devise that changes the voltage of an alternating current supply, such as the mains electrical supply
It changes high voltage supple, into low voltage supply or vice versa
A transformer that increases voltage
A transformer that decreases voltage
Electricity is transferred from power stations to consumers through the wires and cables of the national grid.
The more heat that is lost