AC Fundamentals, Circuit and Circuit Theory A phasor is A colored tag or band for distinction between different phases of a 3-phase supply A line which represents the magnitude and phase of an alternating quantity A line representing the magnitude and direction 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 which represents the magnitude and phase of an alternating quantity A line representing the magnitude and direction of an alternating quantity An instrument used for measuring phases of an unbalanced 3-phase load ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series L-C circuit at the resonant frequency the Current is maximum Impedance is maximum Voltage across C is minimum Current is minimum Current is maximum Impedance is maximum Voltage across C is minimum Current is minimum ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following circuit component opposes the change in the circuit voltage ? Conductance Resistance Inductance Capacitance Conductance Resistance Inductance Capacitance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to R.m.s. voltage None of the listed here Peak voltage Average voltage R.m.s. voltage None of the listed here Peak voltage Average voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be unity Inductance None of the listed here Capacitance Resistance Inductance None of the listed here Capacitance Resistance 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 less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit None of these The more heat than produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit None of these The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
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