AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The half cycle Unsymmetrical part of the wave form The quarter cycle The whole cycle The half cycle Unsymmetrical part of the wave form The quarter cycle The whole cycle ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of a series R-C circuit is given by RC2 R2C R/C RC RC2 R2C R/C RC ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 90 30 60 45 90 30 60 45 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Two waves of the same frequency have opposite phase when the phase angle between them is 180° 360° 0° 90° 180° 360° 0° 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The statement given is false The reactance of the inductor The big size of the inductor The current flowing in the inductor The statement given is false The reactance of the inductor The big size of the inductor The current flowing in the inductor ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of L Depends upon the magnitude of R, Land C Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of L Depends upon the magnitude of R, Land C ANSWER DOWNLOAD EXAMIANS APP
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