1. P1 Topic 5/6: Generation and Transmission of Electricity and Energy and the Future
This topic looks at:
How electricity is produced
How we calculate current, voltage and power
Conservation and the efficiency of energy use.
Give an example of where you would use a Step up transformer.
Give an example of where you would use a Step down transformer.
Give an advantage and disadvantage of each of these electricity generation methods
Fossil fuels
Nuclear power
Wind and wave power
Solar
Hydroelectric
A step down transformer converts the 240V mains supply to 12V to power a laptop computer. If there is 90 turns on the secondary coil, show that there needs to be 1800 turns on the primary coil.
Keywords: Current, Energy, Power, Efficiency, Potential difference, Induction,
Identify the energy transfers at each stage
What is the efficiency of this bulb?
Efficiency =
Keywords: Transformer, Generator, Dynamo, Direct current, Alternating current, Step up, Step down.