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 VR None of these VC and VL VL and VR VC and VR None of these VC and VL ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value, which of the following wave has the least mean value? Half wave rectified sine wave Sine wave Triangular wave Square wave Half wave rectified sine wave Sine wave Triangular wave Square wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor 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 All of the listed here Overloads alternators, transformers and distribution lines ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Consume more power Create more electrical noise Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Consume more power Create more electrical noise ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory At very low frequencies a series R-C circuit behaves as almost purely Inductive Resistive None of the listed here Capacitive Inductive Resistive None of the listed here Capacitive ANSWER DOWNLOAD EXAMIANS APP
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