Question

How does three pin plug ensure safety

Answer 1

Question :

How does a Three pin plug ensures better Safety ?

Answer :

The length and thickness of the earth pin

is more than that of the other pins. Since,

the length is more, when the three pins

is introduced into the socket. The earth

pin comes into the contact with the

circuit first. When the three pin is pulled

out o the socket, the earth pin will be the

last to break the contact. Hence,

complete safety is ensured by the three

pin plug.