Mains Electricity (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What type of current is supplied by UK mains electricity?
What type of current is supplied by UK mains electricity?
Alternating current (AC)
What is the frequency of UK mains electricity?
What is the frequency of UK mains electricity?
Hz
What is the voltage of UK mains electricity?
What is the voltage of UK mains electricity?
About V
How does current behave in an alternating current (AC) supply?
How does current behave in an alternating current (AC) supply?
It varies from positive to negative
Which devices supply direct current (DC)?
Which devices supply direct current (DC)?
Cells and batteries
What does a frequency of Hz mean for UK mains electricity?
What does a frequency of Hz mean for UK mains electricity?
cycles per second
What color is the live wire in a plug?
What color is the live wire in a plug?
Brown
What color is the neutral wire in a plug?
What color is the neutral wire in a plug?
Blue
What color is the earth wire in a plug?
What color is the earth wire in a plug?
Green and yellow stripes
What voltage does the live wire carry?
What voltage does the live wire carry?
V
What is the main function of the earth wire?
What is the main function of the earth wire?
Prevents appliance from becoming live
What happens when the appliance case becomes live?
What happens when the appliance case becomes live?
Huge current flows, fuse melts