1. Cell is a device which
2. A bulb has
3. Filament of a bulb is made up of
4. Bulb glows only in
5. A battery is
6. A substance which allows electricity to pass through it is called
7. Which is an example of an insulator
8. An example of a conductor is
9. How many terminals are there in a dry cell?
10. To prevent electric shocks, the metallic electrical wires are covered with