Magnetism and Electricity Flashcards
1
Q
National grid
A
the system of power stations, transformers and transmission lines that provide electricity across the country
2
Q
Transmission Cable
A
A thick wire through which electricity is transported in long distances
3
Q
Transformer
A
A device that alters the potential difference of electricity
4
Q
Step up Transformer
A
a transformer that increases potential difference
5
Q
Step down transformer
A
a transformer that decreases the potential difference
6
Q
Power lost
A
Energy lost each second to the surroundings
7
Q
Mains electricity Voltage
A
230V, alternating current
8
Q
Mains electricity Frequency
A
50hz
9
Q
Turbine
A
A propeller shaped object that can be spun by moving liquids or gasses
10
Q
Generator
A
coils of wire in a magnetic field that generate voltage when spun
