AC FUNDAMENTALS MCQs Part 08

71 The rms value of current through the resistance will be
a. 6 A
b. 5 A
c. 4 A
d. 3 A

72. The average value of current for the half cycle will be
a. 5.4 A
b. 4.4 A
c. 4.0 A
d. 3.6 A

73. The power dissipated in the resistor will be
a. 0.5.k W
b. 1 k W
c. 1.8 kW
d. 3.6 kW

74. The output voltage will be
a. 28 mV
b. 66 mV
c. 44 mV
d. 22 mV

75. If the loop has 10 turns instead of one the maximum output voltage will be
a. 1760 mV
b. 880 mV
c. 440 mV
d. 110 mV

76. For the generator with 10 turns the instantaneous level of voltages at 5×180/4 radians from e = 0 will be
a. 0.31 V
b. 0.62 V
c. -0.62 V
d. -0.31 V

77. In the above case the value of output voltage at 25 ms from e = 0 will be
a. 64.4 m V
b. 128.6 m V
c. 255.1 m V
d. 315.4 m V

78. The instantaneous power dissipated in the resistor at 5.5 milli seconds from the time that the waveform commences to grow positively from zero will be
a. 0.44 W
b. 0.66 W
c. 0.88 W
d. 1.76 W

79. The peak instantaneous power dissipated in the resistor will be
a. 3 W
b. 4.5 W
c. 6 W
d. 9 W

80. The average power dissipated in the resistor will be
a. 1.2 W
b. 0.9 W
c. 0.6 W
d. 0.3 W

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