Electrostatics

3. 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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of two" class="read-more button" href="https://exam.pscnotes.com/mcq/a-capacitor-consists-of-two/#more-50664">Detailed SolutionA capacitor consists of two

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

Electric intensity
Electric flux
Magnetic flux
Magnetic flux density

Detailed Solutionat

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

5. 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 when placed

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

6. 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

Detailed SolutionA capacitor having capacitance of 5 uF is charged to a potential

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difference of 10,000 V. The energy stored in the capacitor is

7. 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

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capacitor, the plates of which are 4 mm apart. The strength of electric field is" class="read-more button" href="https://exam.pscnotes.com/mcq/a-potential-of-400-v-is-applied-to-a-capacitor-the-plates-of-which-are-4-mm-apart-the-strength-of-electric-field-is/#more-50300">Detailed SolutionA potential of 400 V is applied to a capacitor, the plates of which are 4 mm apart. The strength of electric field is

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

insulation
conductor
outer sheath
uniformly all over

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button" href="https://exam.pscnotes.com/mcq/the-minimum-value-of-potential-gradient-in-a-cable-occurs-in/#more-50216">Detailed SolutionThe minimum value of potential gradient in a cable occurs in

9. 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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for paper capacitors is usually" 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

10. 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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