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MCQs

Total Questions : 90 | Page 9 of 9 pages
Question 81. . ______________ is shuttled back and forth between the source and load.
  1.    True power
  2.    Reactive power
  3.    Apparent power
  4.    Impedance power
 Discuss Question
Answer: Option B. -> Reactive power
Question 82. . When the resistance is greater than the capacitive reactance in a series RC circuit, the phase angle is ___.
  1.    0°
  2.    between 0° and 45°
  3.    between 45° and 90°
  4.    45°
 Discuss Question
Answer: Option B. -> between 0° and 45°
Question 83. . If a series RC circuit contains a 120 komega.gif resistance and a 160 komega.gif capacitive reactance, the impedance equals _____.
  1.    280 komega.gif
  2.    120 komega.gif
  3.    160 komega.gif
  4.    200 komega.gif
 Discuss Question
Answer: Option D. -> 200 komega.gif
Question 84. . In a series RC circuit, the phase difference between the current and the source voltage _____.
  1.    depends on the values of R and C
  2.    equals 0°
  3.    equals 90°
  4.    depends on the amplitude of the input voltage
 Discuss Question
Answer: Option A. -> depends on the values of R and C
Question 85. . If the impedance equals 2 komega.gif in a parallel RC circuit, the admittance equals ___.
  1.    More information is needed in order to find the admittance.
  2.    2 kS
  3.    4 kS
  4.    500 µS
 Discuss Question
Answer: Option D. -> 500 µS
Question 86. . In a series RC circuit, the phase difference between the capacitor and the resistor voltages ___.
  1.    depends on the values of R and C
  2.    equals 0°
  3.    equals 90°
  4.    depends on the value of the input voltage
 Discuss Question
Answer: Option C. -> equals 90°
Question 87. . The hypotenuse of the right triangle of a vector diagram for R and XC is _______________.
  1.    impedance
  2.    current
  3.    voltage
  4.    power
 Discuss Question
Answer: Option A. -> impedance
Question 88. . If a series RC circuit contains a 120 komega.gif resistance and a 160 komega.gif capacitive reactance, the impedance equals _____.
  1.    280 komega.gif
  2.    120 komega.gif
  3.    160 komega.gif
  4.    200 komega.gif
 Discuss Question
Answer: Option D. -> 200 komega.gif
Question 89. . ______________ is shuttled back and forth between the source and load.
  1.    True power
  2.    Reactive power
  3.    Apparent power
  4.    Impedance power
 Discuss Question
Answer: Option B. -> Reactive power
Question 90. . When the resistance is greater than the capacitive reactance in a series RC circuit, the phase angle is ___.
  1.    0°
  2.    between 0° and 45°
  3.    between 45° and 90°
  4.    45°
 Discuss Question
Answer: Option B. -> between 0° and 45°

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