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MCQs

Total Questions : 330 | Page 6 of 33 pages
Question 51. Capacitor blocks__________ after long time.
  1.    alternating current
  2.    direct current
  3.    both alternating and direct current
  4.    neither alternating nor direct current
 Discuss Question
Answer: Option B. -> direct current
Answer: (b).direct current
Question 52. Why does capacitor block dc signal at steady state?
  1.    due to high frequency of dc signal
  2.    due to zero frequency of dc signal
  3.    capacitor doesnot pass any current at steady state
  4.    due to zero frequency of dc signal
 Discuss Question
Answer: Option D. -> due to zero frequency of dc signal
Answer: (d).due to zero frequency of dc signal
Question 53. What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?
  1.    2F
  2.    4F
  3.    6F
  4.    8F
 Discuss Question
Answer: Option B. -> 4F
Answer: (b).4F
Question 54. The conventional direction of electric field is ________
  1.    Positive to negative
  2.    Negative to positive
  3.    No specific direction
  4.    Direction cannot be determined
 Discuss Question
Answer: Option A. -> Positive to negative
Answer: (a).Positive to negative
Question 55. Electric field originates at __________
  1.    Positive charge
  2.    Negative charge
  3.    Neither positive nor negative
  4.    Both positive and negative
 Discuss Question
Answer: Option A. -> Positive charge
Answer: (a).Positive charge
Question 56. Electric field terminates at ________
  1.    Positive charge
  2.    Negative charge
  3.    Neither positive nor negative
  4.    Both positive and negative
 Discuss Question
Answer: Option B. -> Negative charge
Answer: (b).Negative charge
Question 57. For which medium capacitance is high?
  1.    Air
  2.    Mica
  3.    Water
  4.    Metal
 Discuss Question
Answer: Option D. -> Metal
Answer: (d).Metal
Question 58. As charge increases, what happens to flux density?
  1.    Increases
  2.    Decreases
  3.    Remains constant
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 59. Strength of the electric field is ___________
  1.    Directly proportional to the force applied
  2.    Inversely proportional to the force applied
  3.    Directly proportional to the square of the force applied
  4.    Inversely proportional to the square of the force applied
 Discuss Question
Answer: Option A. -> Directly proportional to the force applied
Answer: (a).Directly proportional to the force applied
Question 60. As area increases, what happens to electric flux density?
  1.    Increases
  2.    Decreases
  3.    Remains constant
  4.    Becomes zero
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases

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