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MCQs

Total Questions : 35 | Page 3 of 4 pages
Question 21. Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given.
  1.    562 mV, 167 Ω
  2.    5.62 V, 167 Ω
  3.    5.62 V, 188 Ω
  4.    562 mV, 188 Ω
 Discuss Question
Answer: Option B. -> 5.62 V, 167 Ω
Question 22. In a two-source circuit, one source acting alone produces 12 mA through a given branch. The other source acting alone produces 10 mA in the opposite direction through the same branch. The actual current through the branch is
  1.    22 mA
  2.    12 mA
  3.    10 mA
  4.    2 mA
 Discuss Question
Answer: Option D. -> 2 mA
Question 23. A practical voltage source has a nonzero internal resistance.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 24. An ideal current source has zero internal resistance.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 25. An ideal voltage source has zero internal resistance.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 26. A practical current source has a finite internal resistance.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 27. A 680 Ω load resistor, RL, is connected across a constant current source of 1.2 A. The internal source resistance, RS, is 12 kΩ. The load current, RL, is
  1.    0 A
  2.    1.2 A
  3.    114 mA
  4.    1.14 A
 Discuss Question
Answer: Option D. -> 1.14 A
Question 28. The Thevenin equivalent voltage (VTH) is the short-circuit voltage between two terminals in a circuit.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 29. A 120 V voltage source has a source resistance, RS, of 60 Ω. The equivalent current source is
  1.    2 A
  2.    4 A
  3.    200 mA
  4.    400 mA
 Discuss Question
Answer: Option A. -> 2 A
Question 30. A 12 mA current source has an internal resistance, RS, of 1.2 kΩ. The equivalent voltage source is
  1.    144 V
  2.    14.4 V
  3.    7.2 V
  4.    72 mV
 Discuss Question
Answer: Option B. -> 14.4 V

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