AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Emax ___________ the average value is 0.636 Emax 0.707 Emax None of the listed here 0.434 Emax 0.636 Emax 0.707 Emax None of the listed here 0.434 Emax ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following refers to a parallel circuit? The current through each element is same The equivalent resistance is greater than any one of the resistors The voltage across element is in proportion to it's resistance value The current through any one element is less than the source current The current through each element is same The equivalent resistance is greater than any one of the resistors The voltage across element is in proportion to it's resistance value The current through any one element is less than the source current 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 None of these VC and VL VC and VR VL and VR None of these VC and VL VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit The current is in phase with the voltage The current leads the voltage by 90° The current can lead or lag by 90° The current lags behind the voltage by 90° The current is in phase with the voltage The current leads the voltage by 90° The current can lead or lag by 90° The current lags behind the voltage by 90° 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 42.42 sin 314 t 60 sin 50 t 60 sin 25 t 84.84 sin 3141 42.42 sin 314 t 60 sin 50 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor All of the listed here Reduces load handling capability of electrical system Overloads alternators, transformers and distribution lines Results in more power losses in the electrical system All of the listed here Reduces load handling capability of electrical system Overloads alternators, transformers and distribution lines Results in more power losses in the electrical system ANSWER DOWNLOAD EXAMIANS APP
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