Electrostatics

71. If

varying voltage produces the charging and dicharging currents
of high peak value
discharge current can flow

Detailed SolutionIf

72. . . . . . . . . at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point.

Electric intensity
Magnetic flux density
Electric flux
None of the above

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unit cross section at that point." class="read-more button" href="https://exam.pscnotes.com/mcq/at-a-point-may-be-defined-as-equal-to-the-lines-of-force-passing-normally-through-a-unit-cross-section-at-that-point/#more-48398">Detailed Solution. . . . . . . . at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point.

73. Air capacitors are generally available in the range

10 to 400 pF
1 to 20 pF
100 to 900 pF
20 to 100 pF

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in the range" class="read-more button" href="https://exam.pscnotes.com/mcq/air-capacitors-are-generally-available-in-the-range/#more-48133">Detailed SolutionAir capacitors are generally available in the range

74. The absolute permittivity of free space is given by

8.854 x 10-9 F/m
8.854 x 10-10 F/m
8.854 x 10-11 F/m
8.854 x 10-12 F/m

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given by" class="read-more button" href="https://exam.pscnotes.com/mcq/the-absolute-permittivity-of-free-space-is-given-by/#more-47873">Detailed SolutionThe absolute permittivity of free space is given by

75. One volt is the same as

one joule/coulomb
one coulomb/joule
one coulomb
one joule

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href="https://exam.pscnotes.com/mcq/one-volt-is-the-same-as/#more-47744">Detailed SolutionOne volt is the same as

76. Which of the following capacitor is preferred in case of single phase motor ?

Mica capacitor
Paper capacitor
Electrolytic capacitor
Ceramic capacitor

Detailed

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SolutionWhich of the following capacitor is preferred in case of single phase motor ?

77. When the dielectric is homogeneous,the potential gradient is

uniform
non-uniform
zero
any of the above

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576 512"> Subscribe on YouTube href="https://exam.pscnotes.com/mcq/when-the-dielectric-is-homogeneousthe-potential-gradient-is/#more-47425">Detailed SolutionWhen the dielectric is homogeneous,the potential gradient is

78. Dielectric strength of a material depends on

moisture content
temperature
thickness
all of the above

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button" href="https://exam.pscnotes.com/mcq/dielectric-strength-of-a-material-depends-on/#more-47310">Detailed SolutionDielectric strength of a material depends on

79. While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is

Short-circuited
Open circuited
Alright
Leaky

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is" class="read-more button" href="https://exam.pscnotes.com/mcq/while-testing-a-capacitor-with-ohm-meter-if-the-capacitor-shows-charging-but-the-final-resistance-reading-is-appreciably-less-than-normal-it-can-be-concluded-that-the-capacitor-is/#more-47273">Detailed SolutionWhile testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is

80. Which medium has the least dielectric strength ?

Paraffin wax
Quartz
Glass
Air

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SolutionWhich medium has the least dielectric strength ?

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