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MCQs

Total Questions : 162 | Page 3 of 17 pages
Question 21. Two 1.5 V cells are connected series opposing across two 100 Ω resistors in series. Total current flow is
  1.    15 mA
  2.    5 mA
  3.    2 mA
  4.    0 A
 Discuss Question
Answer: Option D. -> 0 A
Question 22. In a series circuit, the individual powers are additive.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 23. Which of the following series combinations dissipates the most power when connected across a 120 V source?
  1.    One 220 Ω resistor
  2.    Two 220 Ω resistors
  3.    Three 220 Ω resistors
  4.    Four 220 Ω resistors
 Discuss Question
Answer: Option A. -> One 220 Ω resistor
Question 24. A series circuit acts as a current divider.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 25. A series circuit acts as a voltage divider.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 26. The total resistance of a circuit is 680 Ω. The percentage of the total voltage appearing across a 47 Ω resistor that makes up part of the total series resistance is
  1.    68 %
  2.    47 %
  3.    69 %
  4.    6.91 %
 Discuss Question
Answer: Option D. -> 6.91 %
Question 27. If a 24 V and a 6 V battery are series opposing, the total voltage is
  1.    30 V
  2.    24 V
  3.    18 V
  4.    0 V
 Discuss Question
Answer: Option C. -> 18 V
Question 28. The total resistance of eight 5.6 kΩ resistors in series is
  1.    8 Ω
  2.    5,600 Ω
  3.    4,480 Ω
  4.    44,800 Ω
 Discuss Question
Answer: Option D. -> 44,800 Ω
Question 29. When a fourth resistor is connected in series with three resistors, the total resistance
  1.    Increases by one-fourth
  2.    Increases
  3.    Decreases
  4.    Remains the same
 Discuss Question
Answer: Option B. -> Increases
Question 30. If a 6 V and a 9 V source are connected series aiding, the total voltage is
  1.    6 V
  2.    9 V
  3.    3 V
  4.    15 V
 Discuss Question
Answer: Option D. -> 15 V

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