Reliance Jio Electromagnetic Field Quiz-1

Question 1

Time: 00:00:00

  1. The lines of force due to charged particles are

always straight

always straight

always curved

always curved

sometimes curved

sometimes curved

none of the above

none of the above

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Question 2

Time: 00:00:00

  1. The electric field at a point situated at a distance d from straight charged conductor is

proportional to d

proportional to d

inversely proportional to d

inversely proportional to d

inversely proportional to d

inversely proportional to d

none of the above

none of the above

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Question 3

Time: 00:00:00

  1. The direction of electric field due +0 positive charge is .

away from the charge

away from the charge

towards the charge

towards the charge

both (a) and (b)

both (a) and (b)

none of the above

none of the above

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Question 4

Time: 00:00:00

  1. A field line and an equipotential surface are

always parallel

always parallel

always at 90°

always at 90°

inclined at any angle 0

inclined at any angle 0

none of the above

none of the above

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Question 5

Time: 00:00:00

  1. The ability of charged bodies to exert force on 6ne another is attributed to the existence of

electrons

electrons

protons

protons

neutrons

neutrons

electric field

electric field

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Question 6

Time: 00:00:00

  1. If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will

decrease

decrease

increase

increase

remains unchanged

remains unchanged

become zero

become zero

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Question 7

Time: 00:00:00

  1. For making a capacitor, it is better to select a dielectric having

low permittivity

low permittivity

high permittivity

high permittivity

permittivity same as that of air

permittivity same as that of air

permittivity slightly more than that of air

permittivity slightly more than that of air

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Question 8

Time: 00:00:00

  1. The units of capacitance are

volts/coulomb

volts/coulomb

coulombs/volt

coulombs/volt

ohms

ohms

henry/Wb

henry/Wb

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Question 9

Time: 00:00:00

  1. An electrolytic capacitor can be used for

D.C. only

D.C. only

AC. Only

AC. Only

both D.C. as well as A.C.

both D.C. as well as A.C.

neither A.C. nor D.C

neither A.C. nor D.C

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Question 10

Time: 00:00:00

  1. The capacitance of a capacitor is not affected by

distance between plates

distance between plates

area of plates

area of plates

thickness of plates

thickness of plates

all of the above

all of the above

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["0","40","60","80","100"]
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