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. 10 5 25 15 10 5 25 15 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The main cause of silting up a channel, Defective head regulator Non-regime section Inadequate slope All of these Defective head regulator Non-regime section Inadequate slope All of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 8 kVAR 10 kVAR 12 kVAR 16 kVAR 8 kVAR 10 kVAR 12 kVAR 16 kVAR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that Both waves must have identical peak values Both waves must have same frequency Both waves must have zero value at the same time None of the listed here Both waves must have identical peak values Both waves must have same frequency Both waves must have zero value at the same time None of the listed here 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 Reactive power True power Volt-amperes Instantaneous power Reactive power True power Volt-amperes ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of an alternating current is The number of waves passing through a point in one second The speed with which the alternator runs The number of electrons passing through a point in one second The number of cycles generated in one minute The number of waves passing through a point in one second The speed with which the alternator runs The number of electrons passing through a point in one second The number of cycles generated in one minute ANSWER DOWNLOAD EXAMIANS APP
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