This is a timed quiz. You will be given 1200 seconds to answer all questions. Are you ready?
1200
A hot wire ammeter reads 10 A in an ac circuit. The peak value of current is:
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A complex current wave is given by i = 5 + 5 sin 100 ฯt ampere. Its average value is โ ampere.
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If e1 = A sin ฯt and e2 = B sin (ฯt โ ฯ), then
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A resultant current is made of two components: a 10 A d.c. component and a sinusoidal component of maximum value 14.14 A. The RMS value of the resultant current is โ amperes.
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Hot-wire ammeters are used for measuring:
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An a.c. current given by i = 14.14 sin (ฯt + ฯ/6) has an r.m.s value of โ amperes.
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The period of 1 kHz a.c is :
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What is the peak to peak value for 120 V ac?
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A sinusoidal current has a peak value of 8.5 A. What value of direct current has the same heating effect?
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The r.m.s. value of a half-wave rectified current is 10A, its value for full-wave rectification would be โ amperes.
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If a phasor points straight down, its angle can be ggiven as 270 degree or
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As sine wave has a frequency of 50 Hz. Its angular frequency is โ radian/second.
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An a.c. current given by i = 14.14 sin (ฯt +ฯ/6) has and a phase of โ degrees.
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The peak to peak value of 40 V sine wave is:
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The r.m.s. value of sinusoidal a.c. current is equal to its value at an angle of โ degree
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AC Fundamentals Quiz
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