AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The half cycle Unsymmetrical part of the wave form The quarter cycle The whole cycle The half cycle Unsymmetrical part of the wave form The quarter cycle The whole cycle ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The product of apparent power and cosine of the phase angle between circuit voltage and current is Instantaneous power Volt-amperes Reactive power True power Instantaneous power Volt-amperes Reactive power True 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 less heat than produced by A.C. flowing through the same circuit None of these The same heat as produced by A.C. when flowing through the same circuit 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 None of these The same heat as produced by A.C. when flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The main cause of silting up a channel, Inadequate slope Defective head regulator All of these Non-regime section Inadequate slope Defective head regulator All of these Non-regime section ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will Be reduced by half Be reduced to one fourth Be doubled Be four times at high Be reduced by half Be reduced to one fourth Be doubled Be four times at high ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 15 5 10 25 15 5 10 25 ANSWER DOWNLOAD EXAMIANS APP
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