Electrostatics

51. The units of volume charge density are

Coulomb/meter
Coulomb/meter2
Coulomb/meter3
Coulomb/meter4

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button" href="https://exam.pscnotes.com/mcq/the-units-of-volume-charge-density-are/#more-50832">Detailed SolutionThe units of volume charge density are

52. capacitors are used for audio frequency and radio frequency coupling and tuning.

Air
Mica
Plastic film
Ceramic

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74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
button" href="https://exam.pscnotes.com/mcq/capacitors-are-used-for-audio-frequency-and-radio-frequency-coupling-and-tuning/#more-50700">Detailed Solutioncapacitors are used for audio frequency and radio frequency coupling and tuning.

53. A capacitor consists of two

Ceramic plates and one mica disc
Insulators separated by a dielectric
Silver-coated insulators
Conductors separated by an insulator

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41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube class="read-more-container">Detailed SolutionA capacitor consists of two

54. at a point is equal to the negative potential gradient at that point.

Electric intensity
Electric flux
Magnetic flux
Magnetic flux density

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that point." class="read-more button" href="https://exam.pscnotes.com/mcq/at-a-point-is-equal-to-the-negative-potential-gradient-at-that-point/#more-50657">Detailed Solutionat a point is equal to the negative potential gradient at that point.

55. A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 103 N, is known as

milli-coulomb
micro-coulomb
pico-coulomb
coulomb

Detailed SolutionA charge which

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when placed in vacuum
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from an equal and similar charge repels with a force of 9 x 103 N, is known as

56. A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is

50 joules
150 joules
200 joules
250 joules

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class="read-more button" href="https://exam.pscnotes.com/mcq/a-capacitor-having-capacitance-of-5-uf-is-charged-to-a-potential-difference-of-10000-v-the-energy-stored-in-the-capacitor-is/#more-50379">Detailed SolutionA capacitor having capacitance of 5 uF is
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charged to a potential difference of 10,000 V. The energy stored in the capacitor is

57. A potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

100 kV/m
10 kV/m
5 kV/m
2 kV/m

Detailed SolutionA

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potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

58. The minimum value of potential gradient in a cable occurs in

insulation
conductor
outer sheath
uniformly all over

Detailed

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SolutionThe minimum value of potential gradient in a cable occurs in

59. The breakdown voltage for paper capacitors is usually

20 to 60 volts
200 to 1600 volts
2000 to 3000 volts
more than 10000 volts

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class="read-more button" href="https://exam.pscnotes.com/mcq/the-breakdown-voltage-for-paper-capacitors-is-usually/#more-50146">Detailed SolutionThe breakdown voltage for paper capacitors is usually

60. A paper capacitor is usually available in the form of

tubes
rolled foil
disc
meshed plates

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href="https://exam.pscnotes.com/mcq/a-paper-capacitor-is-usually-available-in-the-form-of/#more-49900">Detailed SolutionA paper capacitor is usually available in the form of

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