Electricity in homes - P2

Question 1

What is the process of electricity getting from our (UK) power supply to our homes?

Answer 1

Power station (25,000V) –> Step-up transformer (400,000V) –> National grid –> Step-down transformer (230V) –> Homes

Question 2

What is the potential difference across the mains power supply in the UK?

Answer 2

230V

Question 3

The National Grid is the network of ______ and _________ that connect power stations with houses and shops in the United Kingdom.

Answer 3

The National Grid is the network of cables and transformers that connect power stations with houses and shops in the United Kingdom.