Safety With Electricity Flashcards
1
Q
What is a fuse and circuit breaker
A
Are safety devices that cause a break in a circuit when there is too much current flowing through it
2
Q
What does a fuse and circuit breaker prevent
A
Overheating of conductors and the possibility of a fire
3
Q
What does a fuse contain
A
A thin piece of metal designed to melt of current is too high
4
Q
What colors are the wires
A
Live wire -brown
Neutral wire (blue)
Earth wire- (yellow/green)
5
Q
Circuit breakers
A
Trip a spring mechanism, which shuts of electricity through the circuit when there is too much current
6
Q
Difference between cell and battery
A
A cell is a single unit of device that converts chemical energy into electrical energy.
A battery is a number of cells connected together
