AC Fundamentals, Circuit and Circuit Theory The square waveform of current has following relation between r.m.s. value and 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 r.m.s. value of current is less than average value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a frequency of 200 Hz, the time period will be 0.05 s 0.5 s 0.005 s 0.0005 s 0.05 s 0.5 s 0.005 s 0.0005 s 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 5 10 15 2.5 5 10 15 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Resistance Capacitance Capacitive reactance Inductive reactance Resistance Capacitance Capacitive reactance Inductive reactance 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 The power consumed in a circuit element will be least when the phase difference between the current and voltage is 30° 90° 60° 180° 30° 90° 60° 180° ANSWER DOWNLOAD EXAMIANS APP
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