national grid Flashcards
1
Q
what is the national grid include?
A
the power generation station, the cables and transformers that distribute electricity around the country
2
Q
what do step up transformers do?
A
step up the voltage and therefore decrease the current.
3
Q
what do step down transformers do?
A
step down voltage and therefore increase the current.
4
Q
what do step down transformers reduce?
A
reduces heat loss in the cables and increases efficiency
5
Q
what does using thick wires increase?
A
increases efficiency as thicker wires have a lower electrical
resistance.
