What is the name given to a material which can not conduct electricity?
An Insulator.
What is the name given to a material that can conduct electricity?
A conductor
What colour is the live wire in a plug?
Red
What colour is the neutral wire in a plug
Black
What colour is the earth wire in a plug ?
Green
What is the unit for resistance in a circuit?
Ohm
What type of supply does a battery produce, A.C or D.C ?
D.C
What type of supply does a coal power station produce, A.C or D.C?
A.C
What is the frequency of the India mains electricity supply (it's an A.C supply)
50 Hz
Will a bird be electrocuted if it sits on a national grid cable?
No, if it is only touching the live wire, it is not completing a circuit so no current flows
What is a fuse?
A piece of wire which will melt and break the circuit if too much current is flowing.
Why could a country not only use wind turbines and solar panels to generate its electricity?
It's not always windy and its not always sunny
