AC Fundamentals, Circuit and Circuit Theory What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? 30° 45° 180° 90° 30° 45° 180° 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of R only C only L only L or C R only C only L only L or C 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 60 sin 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t 60 sin 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Capacitive effect between adjacent coil turns Skin effect Iron loss in core Increase in temperature Capacitive effect between adjacent coil turns Skin effect Iron loss in core Increase in temperature ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In any A.C. circuit always Reactive power is more than apparent power Apparent power is more than actual power Reactive power is more than actual power Actual power is more than reactive power Reactive power is more than apparent power Apparent power is more than actual power Reactive power is more than actual power Actual power is more than reactive power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The purpose of a parallel circuit resonance is to magnify Frequency Power Current Voltage Frequency Power Current Voltage ANSWER DOWNLOAD EXAMIANS APP
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