Electrostatics 2

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

Question 1 of 35

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

Question 2 of 35

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

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

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

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6. 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

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

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9. Define capacitance

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

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

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12. 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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13. What does a Lighting arrestor comprise of?

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14. 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 14 of 35

15. 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 15 of 35

16. 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 16 of 35

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

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

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

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21. Objects with a sharp point discharge charges faster?

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

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

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24. Mention the importance of lighting arrestor

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

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26. Mention 3 types of capacitors

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

Question 27 of 35

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

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

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30. Mention the influencing factors of capacitance

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

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

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

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34. State the SI UNIT of capacitance?

Question 34 of 35

35. Name the device used to store charges?

Question 35 of 35