Fill in the blanks
1. Comb rubbed with hair ………. electrons from the hair and becomes negatively charged.
2. Electric charge is measured in …………
3. Since, protons and electrons are equal in number, an atom is electrically …………
4. When an ebonite rod is rubbed with fur, the fur transfers ………… to the ebonite rod.
5. Before the discovery of electrons, it was considered that electric current is due to the flow of ………… charges.
6. The gold – leaf electroscope was developed by …………
7. ………… is an example of discharge that takes place in clouds.
8. During thunderstorm air is moving …………rapidly.
9. Huge quantities of electricity are discharged in light flashes and temperatures of over ……….°C or more can be reached.
10. ………… extreme heat will vaporize the water inside a tree, creating steam that may bum out the tree.
