# DC Circuits (Part 2) MCQs with Answers

### Chapter 1. DC Circuits

51. KCL is applied at
(a) Loop
(b) Node
(c) Both loop and node
(d) Neither loop nor node

52. KCL is applied at
(a) Loop
(b) Node
(c) Both loop and node
(d) Neither loop nor node

53. Mesh analysis employs the method of _____________
(a) KVL
(b) KCL
(c) Both KVL and KCL
(d) Neither KCL nor KVL

54. Mesh analysis employs the method of _____________
(a) KVL
(b) KCL
(c) Both KVL and KCL
(d) Neither KCL nor KVL

55. Mesh analysis employs the method of _____________
(a) KVL

(b) KCL
(c) Both KVL and KCL
(d) Neither KCL nor KVL

56. Mesh analysis employs the method of _____________
(a) KVL
(b) KCL
(c) Both KVL and KCL
(d) Neither KCL nor KVL

57. For high frequencies, capacitor acts as
(a) Open circuit
(b) Short circuit
(c) Amplifier
(d) Rectifier

58. For high frequencies, capacitor acts as
(a) Open circuit
(b) Short circuit
(c) Amplifier
(d) Rectifier

59. For high frequencies, capacitor acts as
(a) Open circuit
(b) Short circuit
(c) Amplifier
(d) Rectifier

60. For high frequencies, capacitor acts as
(a) Open circuit
(b) Short circuit
(c) Amplifier
(d) Rectifier

61. Capacitors charge and discharge in ____________ manner.
(a) Liner
(b) Constant
(c) Square
(d) Exponential

62. Capacitors charge and discharge in ____________ manner.
(a) Liner
(b) Constant
(c) Square
(d) Exponential

63. Capacitors charge and discharge in ____________ manner.
(a) Liner
(b) Constant
(c) Square
(d) Exponential

64. Capacitors charge and discharge in ____________ manner.
(a) Liner
(b) Constant
(c) Square
(d) Exponential

65. In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are _________
(a) Shorted
(b) Opened
(c) Removed
(d) Undisturbed

66. In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are _________
(a) Shorted
(b) Opened
(c) Removed
(d) Undisturbed

67. In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are _________
(a) Shorted
(b) Opened
(c) Removed
(d) Undisturbed

68. In superposition theorem, when we consider the effect of one voltage source, all the other voltage sources are _________
(a) Shorted

(b) Opened
(c) Removed
(d) Undisturbed

69. Thevenin resistance is found by
(a) shorting all voltage sources
(b) opening all current sources
(c) shorting all voltage sources and opening all current sources
(d) opening all voltage sources and shorting all current sources

70. Thevenin resistance is found by
(a) shorting all voltage sources
(b) opening all current sources
(c) shorting all voltage sources and opening all current sources
(d) opening all voltage sources and shorting all current sources

71. Thevenin resistance is found by
(a) shorting all voltage sources
(b) opening all current sources
(c) shorting all voltage sources and opening all current sources
(d) opening all voltage sources and shorting all current sources

72. Thevenin resistance is found by
(a) shorting all voltage sources
(b) opening all current sources

(c) shorting all voltage sources and opening all current sources
(d) opening all voltage sources and shorting all current sources

73. Which of the following is also known as the dual of Thevenin’s theorem?
(a) Norton’s theorem
(b) Superposition theorem
(c) Maximum power transfer theorem
(d) Millman’s theorem

74. Which of the following is also known as the dual of Thevenin’s theorem?
(a) Norton’s theorem
(b) Superposition theorem
(c) Maximum power transfer theorem
(d) Millman’s theorem

75. Which of the following is also known as the dual of Thevenin’s theorem?
(a) Norton’s theorem
(b) Superposition theorem
(c) Maximum power transfer theorem
(d) Millman’s theorem

76. Which of the following is also known as the dual of Thevenin’s theorem?
(a) Norton’s theorem
(b) Superposition theorem
(c) Maximum power transfer theorem
(d) Millman’s theorem

77. A 250 V bulb passes a current of 0.3 A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

78. A 250 V bulb passes a current of 0.3 A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

79. A 250 V bulb passes a current of 0.3 A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

80. A 250 V bulb passes a current of 0.3 A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

81. Which of the following is not an expression of power?
(a) P = VI
(b) P = I2R
(c) P = V2/R
(d) P = I/R

82. Which of the following is not an expression of power?
(a) P = VI
(b) P = I2R
(c) P = V2/R
(d) P = I/R

83. Which of the following is not an expression of power?
(a) P = VI
(b) P = I2R
(c) P = V2/R
(d) P = I/R

84. Which of the following is not an expression of power?
(a) P = VI
(b) P = I2R
(c) P = V2/R
(d) P = I/R

85. A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

86. A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

87. A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

88. A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
(a) 75 W
(b) 50 W
(c) 25 W
(d) 90 W

89. Kilowatt-hour(kWh) is a unit of?
(a) Current
(b) Power
(c) Energy
(d) Resistance

90. Kilowatt-hour(kWh) is a unit of?
(a) Current
(b) Power
(c) Energy

(d) Resistance

91. Kilowatt-hour(kWh) is a unit of?
(a) Current
(b) Power
(c) Energy
(d) Resistance

92. Kilowatt-hour(kWh) is a unit of?
(a) Current
(b) Power
(c) Energy
(d) Resistance

93. The SI unit of power is?
(a) kW (kilo-watt)
(b) J/s (joules per second)
(c) Ws (watt-second)
(d) J/h (joules per hour)

94. The SI unit of power is?
(a) kW (kilo-watt)
(b) J/s (joules per second)
(c) Ws (watt-second)
(d) J/h (joules per hour)

95. The SI unit of power is?

(a) kW (kilo-watt)
(b) J/s (joules per second)
(c) Ws (watt-second)
(d) J/h (joules per hour)

96. The SI unit of power is?
(a) kW (kilo-watt)
(b) J/s (joules per second)
(c) Ws (watt-second)
(d) J/h (joules per hour)

97. Out of the following, which one is not a source of electrical energy?
(a) Solar cell
(b) Battery
(c) Potentiometer
(d) Generator

98. Out of the following, which one is not a source of electrical energy?
(a) Solar cell
(b) Battery
(c) Potentiometer
(d) Generator

99. Out of the following, which one is not a source of electrical energy?
(a) Solar cell
(b) Battery
(c) Potentiometer
(d) Generator

100. Out of the following, which one is not a source of electrical energy?
(a) Solar cell
(b) Battery
(c) Potentiometer
(d) Generator