Q24. Where dry cells are used?

 

Q25. What are terminals?

 

Q26. What is dry cell?

 

Q27. What is solar cell?

 

Q28. What is an electric cell?

 

Q29. What is the difference between a cell and a battery?

 

Q30. Name few devices where electric cell are used.

 

Q31. Why are rubber and plastics used for covering electrical wires?

 

Q32. What is an electric circuit diagram?

 

Q33. Where insulators are used?

 

Q34. Air is an insulator. Prove with help of an activity.

 

Q35. What are the different sources of electric current?

 

Q36. What do you understand by an electric circuit?

 

Q37. Electrician uses rubber gloves while repairing electric switches. Give reason.

 

Q38. What does an electric circuit consist of?

 

Q39. If an electrician uses a conduction tester on an object, the bulb of the tester glows. Is the object a conductor or insulator?

 

Q40. If we use two strip of aluminum foil in place of connecting wire to glow a torch bulb using a cell, will bulb glow? Explain, how?

 

Last modified: Thursday, 3 January 2019, 9:27 PM