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 In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will Be doubled Be four times at high Be reduced to one fourth Be reduced by half Be doubled Be four times at high Be reduced to one fourth Be reduced by half ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is 40 kW 36 kW 32 kW 80 kW 40 kW 36 kW 32 kW 80 kW 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 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 2.5 15 10 5 2.5 15 10 5 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an inductive circuit is usually improved by connecting capacitor to it in Series Both parallel and series Parallel None of the listed here Series Both parallel and series Parallel None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a sine wave the slope is constant Between 90° and 180° Between 180° and 270° No where Between 0° and 90° Between 90° and 180° Between 180° and 270° No where Between 0° and 90° ANSWER DOWNLOAD EXAMIANS APP
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