1.
Lightning is produced when

2.
The metal used to make lightning conductors is

4.
One Kilowatt hour is equal to -

5.
Materials that usually are good conductors of electricity?

6.
Pure water is bad conductor of electricity because it is

7.
The metal whose electrical conductivity is more, is

8.
Which of the following is a conductor of electricity ?

9.
A bird sitting on a high tension electric wire does not get electrocuted because

10.
The fuse in our domestic electric circuit melts when there is a high rise in