Capacitors and capacitance, combinations in series and parallel, parallel plate capacitor with and without dielectric, energy stored in a capacitor - Question Bank
1. What is the capacitance of a capacitor if a charge of 0.001 Coulomb is stored on it when a potential difference of 10 Volts is applied across it?
2. If the capacitance of a conductor is C, and it stores charge Q, then the potential energy stored is given by:
3. The capacitance of a spherical conductor of radius R is:
4. A parallel plate capacitor has a capacitance of 1 microfarad in vacuum. If a dielectric with K=4 is inserted, what is the new capacitance?
5. Two capacitors, 2 microfarad and 3 microfarad, are connected in parallel. What is the equivalent capacitance?
6. Two capacitors, 2 microfarad and 3 microfarad, are connected in series. What is the equivalent capacitance?
7. A capacitor stores 50 J of energy when charged to 200 V. What is its capacitance?
8. A capacitor of 10 microfarad is connected to a 100V battery. What is the charge stored on the capacitor?
9. When a dielectric is inserted into a charged capacitor connected to a battery, the energy stored:
10. When a dielectric is inserted into a charged capacitor connected to a battery, the potential difference between the plates:
11. When a dielectric is inserted into a charged capacitor connected to a battery, the electric field between the plates:
12. When a dielectric is inserted into a charged capacitor connected to a battery, the charge on the plates:
13. When a dielectric is inserted into a charged capacitor disconnected from the battery, the energy stored:
14. When a dielectric is inserted into a charged capacitor disconnected from the battery, the potential difference between the plates:
15. When a dielectric is inserted into a charged capacitor disconnected from the battery, the electric field between the plates:
16. Which of the following is NOT a factor affecting the capacitance of a parallel plate capacitor?
17. If three capacitors of capacitances C1, C2, and C3 are connected in parallel, the equivalent capacitance Ceq is given by:
18. If three capacitors of capacitances C1, C2, and C3 are connected in series, the equivalent capacitance Ceq is given by:
19. The dielectric strength of a material is the maximum electric field it can withstand before:
20. For a given voltage, a larger capacitance means:
21. What happens to the capacitance of a parallel plate capacitor if a metal sheet of negligible thickness is inserted between the plates?
22. A capacitor is essentially a device used to store:
23. What is the unit of energy stored in a capacitor?
24. What is the dimension of capacitance?
25. A capacitor of capacitance C is charged to voltage V. If the battery remains connected and the distance between the plates is doubled, what happens to the energy stored in the capacitor?
26. A capacitor of capacitance C is charged to voltage V. If the battery remains connected and the distance between the plates is doubled, what happens to the potential difference across the capacitor?
27. A capacitor of capacitance C is charged to voltage V. If the battery remains connected and the distance between the plates is doubled, what happens to the electric field between the plates?
28. A capacitor of capacitance C is charged to voltage V. If the battery remains connected and the distance between the plates is doubled, what happens to the charge on the capacitor?
29. A capacitor of capacitance C is charged to voltage V. If the battery is removed and the distance between the plates is doubled, what happens to the energy stored in the capacitor?
30. A capacitor of capacitance C is charged to voltage V. If the battery is removed and the distance between the plates is doubled, what happens to the potential difference across the capacitor?
31. A capacitor of capacitance C is charged to voltage V. If the battery is removed and the distance between the plates is doubled, what happens to the electric field between the plates?
32. A capacitor of capacitance C is charged to voltage V. If the battery is removed and the distance between the plates is doubled, what happens to the charge on the capacitor?
33. If the area of the plates of a parallel plate capacitor is doubled, its capacitance will:
34. If the distance between the plates of a parallel plate capacitor is halved, its capacitance will:
35. The capacitance of a parallel plate capacitor is inversely proportional to:
36. The capacitance of a parallel plate capacitor is directly proportional to:
37. When capacitors are connected in parallel, the voltage across each capacitor is:
38. When capacitors are connected in series, the charge on each capacitor is:
39. If a capacitor is charged to a voltage V, and then the voltage is doubled, by what factor does the stored energy increase?
40. What is the formula for the energy stored in a capacitor (U) in terms of charge (Q) and voltage (V)?
41. What is the formula for the energy stored in a capacitor (U) in terms of voltage (V) and capacitance (C)?
42. What is the formula for the energy stored in a capacitor (U) in terms of charge (Q) and capacitance (C)?
43. If a dielectric material with dielectric constant K is inserted between the plates of a parallel plate capacitor, what is the new capacitance?
44. What is the dielectric constant (K) of a material?
45. When a dielectric material is introduced between the plates of a parallel plate capacitor, its capacitance:
46. A parallel plate capacitor has plates of area A and separation d. What is its capacitance in vacuum?
47. Two capacitors C1 and C2 are connected in parallel. What is their equivalent capacitance?
48. Two capacitors C1 and C2 are connected in series. What is their equivalent capacitance?
49. Which of the following represents the relationship between charge (Q), capacitance (C), and voltage (V) for a capacitor?
50. What is the unit of capacitance?