AC Fundamentals, Circuit and Circuit Theory A phasor is An instrument used for measuring phases of an unbalanced 3-phase load A colored tag or band for distinction between different phases of a 3-phase supply A line representing the magnitude and direction of an alternating quantity A line which represents the magnitude and phase of an alternating quantity An instrument used for measuring phases of an unbalanced 3-phase load A colored tag or band for distinction between different phases of a 3-phase supply A line representing the magnitude and direction of an alternating quantity A line which represents the magnitude and phase of an alternating quantity ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be doubled Be reduced by half Be reduced to one fourth Be four times as high Be doubled Be reduced by half Be reduced to one fourth Be four times as high ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR VC and VL None of these VC and VR VL and VR VC and VL None of these VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a circuit containing R, L and C, power loss can take place in Resistance only All of the listed here Capacitance only Inductance only Resistance only All of the listed here Capacitance only Inductance only ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory When an alternating current passes through an ohmic resistance the electrical power converted into heat is Active power None of the listed here Reactive power Apparent power Active power None of the listed here Reactive power Apparent power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces The same heat as produced by A.C. when flowing through the same circuit None of these The less heat than produced by A.C. flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit None of these The less heat than produced by A.C. flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
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