4.5 Dangers Of Electricity

Question 1

fuse

Answer 1

safety device designed to cut off the flow of electricity to an appliance if the current becomes too large

Question 2

earthing

Answer 2

an additional safety wire that can reduce this risk

Question 3

how does an earth wire reduce the risk

Answer 3

1- it provides a low resistance path to earth for a surge of current to go through
2- it causes the fuse to break and stop the supply pf electricity to the damaged appliance