Electrostatics 2

1. Which of the following statements is CORRECT when a capacitor is charged by a battery?

Question 1 of 35

2. Define capacitance

Question 2 of 35

3. Mention the importance of lighting arrestor

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4. Electric field lines are parallel at a uniform field however they are closely arranged at?

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5. C is proportional to A/d and C = (k x A)/d where C = capacitance. Which of the following statements CORRECTLY describe the other parameters in the highlighted formula?

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6. State the SI UNIT of capacitance?

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7. Do you expect to detect charges on the inside surface of a charged hollow conductor/ cylinder?

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8. Give the formula of the energy stored in a capacitor

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9. Objects with a sharp point discharge charges faster?

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10. Which capacitor consists of 2 thin strips of paper which are separated by a metal foil?

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11. Capacitance is directly proportional to the area of plates overlap and inversely proportional to the distance of separation between 2 plates or more. True or False?

Question 11 of 35

12. If a capacitor is connected to a circuit which has a higher voltage than the capacitors rated maximum voltage then the capacitor shall become a conductor. True or False?

Question 12 of 35

13. Between a spherical object and a pear shaped body of equal charge which of the two has a higher charge concentration according to charge distribution?

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14. The resultant capacitor in a parallel connection is the sum of individual capacitor CT = C1 + C2 + C3

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15. Which type of capacitor is able to vary its capacitance and is popular used in radio receivers for tuning?

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16. Mention the 2 types of connections in which capacitors can be connected in a circuit?

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17. Why is an electrolytic capacitor preferred to a paper capacitor?

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18. Mention the influencing factors of capacitance

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19. Lighting is produced when 2 opposite charged clouds attract one another strongly and neutralize each other causing thunder and lightning. True or False?

Question 19 of 35

20. Electric field lines do not cross one another. True or False?

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21. What IS THE name given to a measure of the amount of charge the capacitor can store when connected to a given voltage?

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22. Mention 3 types of capacitors

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23. Give the SI unit of the energy stored in a capacitor?

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24. Which capacitor is made by passing a direct current (d.c ) between aluminum foils with a suitable electrolyte (aluminum borate) in between?

Question 24 of 35

25. The direction of an electric field at a point is the direction in which a positively charged particle would move if placed at that point. True or False?

Question 25 of 35

26. Which of the following statements is CORRECT about when a capacitor is discharged?

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27. Name the device used to store charges?

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28. Which of the following is among the properties of an electric field?

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29. Electric field lines are parallel at a uniform field however they are widely spread at?

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30. Which of the following is among the applications of a capacitor?

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31. What does a Lighting arrestor comprise of?

Question 31 of 35

32. Objects which have a sharp point have a higher charge concentration. True or False?

Question 32 of 35

33. The space around a charged body where the force of attraction or repulsion is felt is called?

Question 33 of 35

34. The resultant capacitance in a series connection is the sum of the reciprocal of the capacitance of individual capacitors i.e. 1/Ctotal = 1/C1 + 1/C2 + 1/C3

Question 34 of 35

35. Which of the following statements about capacitor is CORRECT?

Question 35 of 35