AC Fundamentals, Circuit and Circuit Theory A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to The size of the capacitor being quite big The current flowing in capacitor The capacitive reactance in ohms The statement is incorrect The size of the capacitor being quite big The current flowing in capacitor The capacitive reactance in ohms The statement is incorrect 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 reduced to one fourth Be four times as high Be reduced by half Be doubled Be reduced to one fourth Be four times as high Be reduced by half Be doubled ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The square waveform of current has following relation between r.m.s. value and average value. r.m.s. value of current is less than average value None of these r.m.s. value is equal to average value r.m.s. value of current is greater than average value r.m.s. value of current is less than average value None of these r.m.s. value is equal to average value r.m.s. value of current is greater than average value 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 25 10 5 15 25 10 5 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The ratio of active power to apparent power is known as factor. Demand Load Form Power Demand Load Form Power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit Actual power is zero None of the listed here Apparent power is zero Reactive power is zero Actual power is zero None of the listed here Apparent power is zero Reactive power is zero ANSWER DOWNLOAD EXAMIANS APP
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