AC Fundamentals, Circuit and Circuit Theory The purpose of a parallel circuit resonance is to magnify Power Frequency Voltage Current Power Frequency Voltage Current ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Zero Less than unity Greater than unity Unity Zero Less than unity Greater than unity Unity 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 same heat as produced by A.C. when flowing through the same circuit None of these 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 The same heat as produced by A.C. when flowing through the same circuit None of these 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 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The equation of 50 Hz current sine wave having r.m.s. value of 60 A is 42.42 sin 314 t 84.84 sin 3141 60 sin 25 t 60 sin 50 t 42.42 sin 314 t 84.84 sin 3141 60 sin 25 t 60 sin 50 t 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. 5 15 10 25 5 15 10 25 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be 282.8 V 141.4 V 111 V 100 V 282.8 V 141.4 V 111 V 100 V ANSWER DOWNLOAD EXAMIANS APP
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