Questions :-

1. Materials, which allow electric current to pass through them, are __________ conductors of electricity.
(a) Good
(b) Bad
(c) Good as well as bad
(d) None of these

2. Materials, which do not allow electric current to pass through them easily, are ___________ conductors of electricity.
(a) Good
(b) Bad
(c) Good as well as bad
(d) None of these

3. __________ is an example of good conductor of electricity.
(a) Plastic
(b) Rubber
(c) Copper
(d) Wood

4. __________ is an example of poor conductor of electricity.
(a) Copper
(b) Vinegar
(c) Aluminium
(d) Wood

5. __________ is an example of good conductor of electricity.
(a) Plastic
(b) Rubber
(c) Aluminium
(d) Wood

6. __________ is an example of poor conductor of electricity.
(a) Copper
(b) Vinegar
(c) Aluminium
(d) Plastic

7. Chemical effects of electric current are used in the working of __________
(a) Electrolytic cells
(b) Galvanic cells
(c) Electrochemical cells
(d) None of these

8. Name the process of depositing a layer, of any desired metal on another material by means of electricity.
(a) Electroplating
(b) Metal plating
(c) Non – metal plating
(d) None of these

9. Plastic wire is a/an _________
(a) Conductor
(b) Insulator
(c) Both of these
(d) None of these

10. Coating of zinc is deposited on iron to protect it from formation of ___________
(a) Alloy
(b) Gel
(c) Rust
(d) None of these