Mains Electricity

Sarah Collinson
Flashcards by Sarah Collinson, updated more than 1 year ago
Sarah Collinson
Created by Sarah Collinson almost 5 years ago
2
0

Description

AS level Physics (GCSE) Flashcards on Mains Electricity, created by Sarah Collinson on 04/22/2016.

Resource summary

Question Answer
What is the blue wire? Neutral wire - attached to the left-hand pin
What is the brown wire? Live wire - attached to the right-hand pin
What is the green/yellow wire? Earth wire - attached to the top pin
Why must appliances with metal casing be earthed? So that the current flows though the ground rather than the casing. It prevents the casing from becoming live.
Why does the earth cable touch the casing? If the live wire comes into contact with the casing, the current has to flow back through the earth wire into the ground.
What does RCCB stand for? Residual current circuit breaker
What is the purpose of an RCCB? If the current is different through the live and neutral wires, it cuts off the circuit.
What does a fuse do? If the current flowing through a circuit is too high, the fuse melts and breaks the circuit.
Which wire is connected to the fuse? The live wire
Show full summary Hide full summary

Similar

GCSE AQA Physics - Unit 3
James Jolliffe
GCSE AQA Physics 1 Energy & Efficiency
Lilac Potato
P2 Radioactivity and Stars
dfreeman
Physics 1A - Energy
Zaki Rizvi
Physics: Energy resources and energy transfer
katgads
P2a revision (part 1)
juliasutton
P2a (part 2)
juliasutton
Renewable Energy Sources
darkangelforgiven
P3 Medical Applications of Physics
dfreeman
AQA Physics P1 Quiz
Bella Statham