AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The quarter cycle The half cycle Unsymmetrical part of the wave form The whole cycle The quarter cycle The half cycle Unsymmetrical part of the wave form The whole cycle ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Unity Less than unity Greater than unity Zero Unity Less than unity Greater than unity Zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of a coil Varies Inversely as the length of the iron path Both of the listed here None of the listed here Directly as the cross-sectional area of magnetic core Inversely as the length of the iron path Both of the listed here None of the listed here Directly as the cross-sectional area of magnetic core 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 True power Reactive power Volt-amperes Instantaneous power True power Reactive power Volt-amperes ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor All of the listed here Overloads alternators, transformers and distribution lines Results in more power losses in the electrical system Reduces load handling capability of electrical system All of the listed here Overloads alternators, transformers and distribution lines Results in more power losses in the electrical system Reduces load handling capability of electrical system ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR VC and VL None of these VC and VR VL and VR VC and VL None of these VC and VR ANSWER DOWNLOAD EXAMIANS APP
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