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MCQs

Total Questions : 112 | Page 7 of 12 pages
Question 61. As the temperature increases up to the Curie temperature, the relative susceptibility of ferromagnetic materials?
  1.    Increases
  2.    Decreases
  3.    Remains constant
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 62. Reluctance is ________________ to the area of cross section the material.
  1.    Directly proportional
  2.    Inversely proportional
  3.    Not related
  4.    Equal
 Discuss Question
Answer: Option B. -> Inversely proportional
Answer: (b).Inversely proportional
Question 63. Reluctance is ________________ to the length of the material.
  1.    Directly proportional
  2.    Inversely proportional
  3.    Not related
  4.    Reluctance is ________________ to the length of the material.
 Discuss Question
Answer: Option A. -> Directly proportional
Answer: (a).Directly proportional
Question 64. Reciprocal of reluctance is __________
  1.    Permeance
  2.    Susceptibility
  3.    Resistance
  4.    Conductance
 Discuss Question
Answer: Option A. -> Permeance
Answer: (a).Permeance
Question 65. As the temperature increases beyond the Curie temperature, the relative susceptibility of ferromagnetic materials?
  1.    Increases
  2.    Decreases
  3.    Remains constant
  4.    Becomes zero
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases
Question 66. When the length of the material increases, what happens to reluctance?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 67. As the magnetic field strength increases, reluctance?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option A. -> Increases
Answer: (a).Increases
Question 68. The electrical equivalent of reluctance is?
  1.    Resistance
  2.    Inductance
  3.    Capacitance
  4.    Conductance
 Discuss Question
Answer: Option A. -> Resistance
Answer: (a).Resistance
Question 69. When the area of cross section of the material increases, what happens to reluctance?
  1.    Increases
  2.    Decreases
  3.    Remains the same
  4.    Becomes zero
 Discuss Question
Answer: Option B. -> Decreases
Answer: (b).Decreases
Question 70. Unit of reluctance is?
  1.    AWb
  2.    A²/Wb
  3.    Wb/A
  4.    A/Wb
 Discuss Question
Answer: Option D. -> A/Wb
Answer: (d).A/Wb

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