51. If three 15 uF capacitors are connected in series, the net capacitance is
52. If three 10 uF capacitors are connected in parallel, the net cararitance is
53. capacitors can be used only for D.C.
54. Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the
55. The presence of an uncharged conductor near a charged one increases the
56. The absolute permittivity of free space is given by
57. The relative permittivity of free space is given by
58. Electric field intensity is a quantity
59. The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to . . . . . . . . percent of its . . . . . . . . value.
60. The potential gradient across the material of low permittivity is than across the material of high permittivity.
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