Electricity in the Home (Paper 1) Flashcards
1
Q
What is the purpose of a domestic electricity meter?
A
A domestic electricity meter measures how much energy is supplied.
2
Q
What is an equation to calculate energy transferred?
A
An equation to calculate energy transferred is E=Pt
When E is energy transferred, P is power and t is time.
3
Q
What is an equation to calculate useful energy used?
A
Useful energy used = efficiency x energy supplied.