AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 42.42 sin 314 t 30 sin 50 t 84.84 sin 25 t 60 sin 25 t 42.42 sin 314 t 30 sin 50 t 84.84 sin 25 t 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a circuit containing R, L and C, power loss can take place in Capacitance only Resistance only All of the listed here Inductance only Capacitance only Resistance only All of the listed here Inductance only ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of a coil Varies None of the listed here Inversely as the length of the iron path Both of the listed here Directly as the cross-sectional area of magnetic core None of the listed here Inversely as the length of the iron path Both of the listed here Directly as the cross-sectional area of magnetic core ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 127.4 V 141.4 V 200 V 282.8 V 127.4 V 141.4 V 200 V 282.8 V 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? VC and VR VC and VL None of the listed here VL and VR VC and VR VC and VL None of the listed here VL and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor Results in more power losses in the electrical system Overloads alternators, transformers and distribution lines Reduces load handling capability of electrical system All of the listed here Results in more power losses in the electrical system Overloads alternators, transformers and distribution lines Reduces load handling capability of electrical system All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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