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MCQs

Total Questions : 162 | Page 4 of 17 pages
Question 31. The following resistors (one each) are connected in a series circuit: 470 Ω, 680 Ω, 1 kΩ, and 1.2 kΩ. The voltage source is 20 V. Current through the 680 Ω resistor is approximately
  1.    60 mA
  2.    30 mA
  3.    6 mA
  4.    300 mA
 Discuss Question
Answer: Option C. -> 6 mA
Question 32. Two 6 V batteries are connected series aiding across two 1.2 kΩ resistors in series. Current through each resistor is
  1.    5 mA
  2.    10 mA
  3.    0 A
  4.    2.5 mA
 Discuss Question
Answer: Option A. -> 5 mA
Question 33. A series circuit has a 24 V source and a total resistance of 120 Ω. The current through each resistor is
  1.    24 mA
  2.    200 mA
  3.    120 mA
  4.    20 mA
 Discuss Question
Answer: Option B. -> 200 mA
Question 34. The voltage at one point in a circuit is always measured relative to another point.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 35. A string of five series resistors is connected across a 6 V battery. Zero voltage is measured across all resistors except R3. The voltage across R3 is
  1.    0 V
  2.    1.2 V
  3.    6 V
  4.    0.6 V
 Discuss Question
Answer: Option C. -> 6 V
Question 36. In ac circuit, resistance 5 ohm is connected with a capacitor having capacitive reactance 12 ohm. Supply of 260 V is connected to the circuit. Calculate the voltage across a capacitor.
  1.    300 V
  2.    200 V
  3.    240 V
  4.    100 V
 Discuss Question
Answer: Option C. -> 240 V
Answer: (c).240 V
Question 37. In ac circuit, resistance 5 ohm is connected with capacitor having capacitive reactance 12 ohm. Supply of 260 V is connected to the circuit. Calculate the voltage across resistance.
  1.    300 V
  2.    200 V
  3.    240 V
  4.    100 V
 Discuss Question
Answer: Option D. -> 100 V
Answer: (d).100 V
Question 38. In ac circuit, resistance 5 ohm is connected with capacitor having capacitive reactance 12 ohm. Supply of 260 V is connected to the circuit. Calculate the current in the circuit.
  1.    40 A
  2.    10 A
  3.    20 A
  4.    30 A
 Discuss Question
Answer: Option C. -> 20 A
Answer: (c).20 A
Question 39. Find the total voltage applied in a series RLC circuit when i=3mA, Vₗ=30V, Vc=18V and R=1000 ohms.
  1.    3.95V
  2.    51V
  3.    32.67V
  4.    6.67V
 Discuss Question
Answer: Option B. -> 51V
Answer: (b).51V
Question 40. In an RLC circuit, which of the following is always used as a vector reference?
  1.    Voltage
  2.    Resistance
  3.    Impedance
  4.    Current
 Discuss Question
Answer: Option A. -> Voltage
Answer: (a).Voltage

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