Electrostatics MCQ Questions & Answers

1

Which capacitor will be physically smaller for the same ratings ?

A) Ceramic capacitor B) Paper capacitor C) Both will be of equal size D) None of the above

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Answer & Solution

Answer: Option A

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2

The value of dielectric constant for vacuum is taken as

A) zero B) 1 C) 4 D) 10

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Answer & Solution

Answer: Option B

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3

The ohmmeter reading for a short circuited capacitor is

A) infinity B) few kilo ohms C) few megohms D) zero

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Answer & Solution

Answer: Option D

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4

For which of the following parameter variation, the capacitance of the capacitor remains unaffected ?

A) Distance between plates B) Area of the plates C) Nature of dielectric D) Thickness of the plates

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Answer & Solution

Answer: Option D

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5

The capacitor preferred for high frequency circuits is

A) air capacitor B) mica capacitor C) electrolytic capacitor D) none of the above

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Answer & Solution

Answer: Option B

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6

A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is

A) 62 x 105 V/m B) 72 x 105 V/m C) 82 x 105 V/m D) 92 x 105 V/m

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Answer & Solution

Answer: Option B

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7

An uncharged conductor is placed near a charged conductor, then

A) the uncharged conductor gets charged by conduction B) the uncharged conductor gets charged by induction and then attracted towards the charging body C) the uncharged conductor is attracted first and then charged by induction D) it remains as such

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Answer & Solution

Answer: Option B

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8

Which of the following expression is correct for electric field strength?

A) $${\text{E}} = {\text{D}} \in $$ B) $${\text{E}} = \frac{{\text{r}}}{ \in }$$ C) $${\text{E}} = \pi {\text{D}}$$ D) $${\text{E}} = \frac{{\text{D}}}{ \in }$$

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Answer & Solution

Answer: Option D

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9

A dielectric material must be

A) resistor B) insulator C) good conductor D) semi conductor

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Answer & Solution

Answer: Option B

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10

The property of a capacitor to store electricity is called its

A) capacitance B) charge C) energy D) none of the above

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Answer & Solution

Answer: Option A

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Electrostatics MCQ Questions & Answers | Electrical Engineering