Chemical Effects of Electric Current

 Chemical Effects of Electric Current

Q.1. What is electric current?

Q.2. Give three effects of electric current.

Q.3. What are conductors?

Q.4. Name three good metal conductors.

Q.5. What are insulators?

Q.6. Give three examples of insulators.

Q.7. How to find out whether a substance is conductor or insulator?

Q.8. What are electrolytes?

Q.9. What is electric conduction in electrolytes called?

Q.10. What is the full form of LED?

Q.11. What can be added to distilled water to make it a conductor?

Q.12. What is the heating effect of electric current?

Q.13. What is the magnetic effect of electric current?

Q.14. Which phenomenon did William Nicholson show with electric current?

Q.15. What is the chemical effect of electric current?

Q.16. Give an example of the chemical effect of electric current.

Q.17. What is electrolysis?

Q.18. What are the two categories of conductors?

Q.19. What are metallic conductors? Give examples.

Q.20. What are electronic conductors? Give examples.

Q.21. What are electrolytic conductors? Give examples.

Q.22. Do electrolytes conduct electricity in solid states?

Q.23. What are non-electrolytes? Give examples.

Q.24. What are cations and anions?

Q.25. What is an electrode?

Q.26. What are cathode and anode?

Q.27. What is an electrolytic cell?

Q.28. What is electroplating?

Q.29. What is the use of electroplating?

Q.30. Name some objects plated with chromium and why?

Q.31. Why are tin cans plated with tin on iron?

Q.32. How are bridges and automobiles prevented from corrosion and rusting?

Q.33. Describe the electroplating process carried out with copper sulphate solution and copper plates?

Questions : Electric Current and Its Effect

 Electric Current and its Effect

Q.1. What is an electric circuit?

Q.2. Name the simplest source of electric current?

Q.3. What are the components needed to create a simple circuit?

Q.4. What are the symbols of electric cell, battery, electric bulb, switch in on position , switch on off position?

Q.5. What is a battery?

Q.6. What is a circuit diagram?

Q.7. When is a bulb said to be fused?

Q.8. What is the heating effect of current?

Q.9. Name some appliances where heating effect of current is used.

Q.10. What is a heating element in an appliance?

Q.11. On what factors the amount of heat produced in a wire depends.

Q.12. Name the material of which an element is made.

Q.13. Name the material of which the bulb's filament is made?

Q.14. What can we use in place of a bulb to reduce wastage of electricity?

Q.15. What is an electric fuse?

Q.16. What is the property of a fuse?

Q.17. What is the symbol of a fuse?

Q.18. What are the causes of excessive electric current?

Q.19. What are miniature circuit breakers (MCBs)?

Q.20. What is a compass?

Q.21. What happens when we increase the number of coils?

Q.22. Who first observed the magnetic effect of electric current?

Q.23. Can electric current be used to produce magnets?

Q.24. What is the unit of electric current?

Q.25. What is a solenoid?

Q.26. What is an electromagnet?

Q.27. On what factors does the strength of an Electromagnet depend?

Q.28. What are the uses of electromagnets?

Q.29. On what principle is the working of an electric bell based?

Q.30. Explain the working of an electric bell.