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MCQs

Total Questions : 35 | Page 2 of 4 pages
Question 11. Conversions between delta-type and wye-type circuit arrangements are useful in certain specialized applications.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 12. Find the Norton circuit, that is, IIN and RN, for the circuit given below.
  1.    478 mA, 12.8 Ω
  2.    750 mA, 12.8 Ω
  3.    478 mA, 6.8 Ω
  4.    750 mA, 6.8 Ω
 Discuss Question
Answer: Option A. -> 478 mA, 12.8 Ω
Question 13. Referring to circuit given, if R1 is changed to a 68 Ω resistor, what will be the current through it?
  1.    0.16 A
  2.    0.24 A
  3.    0.2 A
  4.    0.04 A
 Discuss Question
Answer: Option A. -> 0.16 A
Question 14. Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given below.
  1.    4.16 V, 120 Ω
  2.    41.6 V, 120 Ω
  3.    4.16 V, 70 Ω
  4.    41.67 V, 70 Ω
 Discuss Question
Answer: Option D. -> 41.67 V, 70 Ω
Question 15. A 120 Ω load is connected across an ideal voltage source with VS = 12 V. The voltage across the load is
  1.    0 V
  2.    12 V
  3.    120 V
  4.    Cannot be determined
 Discuss Question
Answer: Option B. -> 12 V
Question 16. A 120 Ω load is connected across a voltage source with VS = 12 V and RS = 8 Ω. The voltage across the load is
  1.    11.25 V
  2.    0 V
  3.    12 V
  4.    1.13 V
 Discuss Question
Answer: Option A. -> 11.25 V
Question 17. An 18 V source has an internal resistance of 70 Ω. If a load resistance of 33 Ω is connected to the voltage source, the load power, PL, is
  1.    0 W
  2.    1 W
  3.    175 mW
  4.    18 mW
 Discuss Question
Answer: Option B. -> 1 W
Question 18. A 12 V source has an internal resistance of 90 Ω. If a load resistance of 20 Ω is connected to the voltage source, the load power, PL, is
  1.    2.38 mW
  2.    2.38 W
  3.    238 mW
  4.    23.8 W
 Discuss Question
Answer: Option C. -> 238 mW
Question 19. Some circuits require more than one voltage or current source.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 20. Referring to the given circuit, determine VTH and RTH if a 68 Ω resistor is connected in parallel across R2 and R3.
  1.    3.3 V, 148 Ω
  2.    330 mV, 148 Ω
  3.    3.3 V, 68 Ω
  4.    330 mV, 68 Ω
 Discuss Question
Answer: Option A. -> 3.3 V, 148 Ω

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