Electrostatics Archives - Page 5 of 11 - MCQ and Quiz for Exams

41. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as

Photoelectric effect

Chemical effect

Magnetic effect

Induction

Detailed SolutionThe phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as

42. Which of the following capacitors is marked for polarity ?

Air

Paper

Mica

Electrolytic

Detailed SolutionWhich of the following capacitors is marked for polarity ?

43. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

0.024 F

0.12 F

0.6 F

0.8 F

Detailed SolutionA capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

44. The relative permittivity has the following units

F/m

m/F

Wb/m

no units

Detailed SolutionThe relative permittivity has the following units

45. An electric field line and an equipotential surface are

Always parallel

Always at 90Â°

Inclined at any angle

None of the above

Detailed SolutionAn electric field line and an equipotential surface are

46. Which of the following is not a vector ?

Linear momentum

Angular momentum

Electric field

Electric potential

Detailed SolutionWhich of the following is not a vector ?

47. Electric displacement is a______quantity.

scalar

vector

both of the above

none of the above

Detailed SolutionElectric displacement is a______quantity.

48. Electric field intensity is a quantity

scalar

vector

both (A) and (B)

none of the above

Detailed SolutionElectric field intensity is a quantity

49. capacitors can be used only for D.C.

Air

Paper

A. Air B. Paper C. Mica

Electrolytic

Detailed Solutioncapacitors can be used only for D.C.

50. capacitors are mainly used for radio frequency tuning.

Paper

Air

Mica

Electrolytic

Detailed Solutioncapacitors are mainly used for radio frequency tuning.

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