AC Fundamentals, Circuit and Circuit Theory In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters? 220 v3 V 220/v3 V None of these 220 V 220 v3 V 220/v3 V None of these 220 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Iron loss in core Capacitive effect between adjacent coil turns Increase in temperature Skin effect Iron loss in core Capacitive effect between adjacent coil turns Increase in temperature Skin effect ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The equation of 50 Hz current sine wave having r.m.s. value of 60 A is 60 sin 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t 60 sin 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A phasor is A line representing the magnitude and direction of an alternating quantity A line which represents the magnitude and phase 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 representing the magnitude and direction of an alternating quantity A line which represents the magnitude and phase 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 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit None of the listed here Reactive power is zero Apparent power is zero Actual power is zero None of the listed here Reactive power is zero Apparent power is zero Actual power is zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Emax ___________ the average value is 0.707 Emax 0.434 Emax None of the listed here 0.636 Emax 0.707 Emax 0.434 Emax None of the listed here 0.636 Emax ANSWER DOWNLOAD EXAMIANS APP
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