AC Fundamentals, Circuit and Circuit Theory A phasor is An instrument used for measuring phases of an unbalanced 3-phase load A line which represents the magnitude and phase of an alternating quantity A line representing the magnitude and direction of an alternating quantity A colored tag or band for distinction between different phases of a 3-phase supply An instrument used for measuring phases of an unbalanced 3-phase load A line which represents the magnitude and phase of an alternating quantity A line representing the magnitude and direction of an alternating quantity A colored tag or band for distinction between different phases of a 3-phase supply ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of L Depends upon the magnitude of R, Land C Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of L Depends upon the magnitude of R, Land C ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? Can dissipate considerable amount of power Connecting them in parallel increases the total value Can act as energy storage devices Oppose sudden changes in voltage Can dissipate considerable amount of power Connecting them in parallel increases the total value Can act as energy storage devices Oppose sudden changes in voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following coil will have large resonant frequency? A coil with large resistance A coil with low distributed capacitance A coil with large distributed capacitance A coil with low resistance A coil with large resistance A coil with low distributed capacitance A coil with large distributed capacitance A coil with low resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to The capacitive reactance in ohms The statement is incorrect The size of the capacitor being quite big The current flowing in capacitor The capacitive reactance in ohms The statement is incorrect The size of the capacitor being quite big The current flowing in capacitor ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that Both waves must have same frequency Both waves must have identical peak values Both waves must have zero value at the same time None of these Both waves must have same frequency Both waves must have identical peak values Both waves must have zero value at the same time None of these ANSWER DOWNLOAD EXAMIANS APP
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