AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 20 Hz 30 Hz 40 Hz 50 Hz 20 Hz 30 Hz 40 Hz 50 Hz 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
AC Fundamentals, Circuit and Circuit Theory In any A.C. circuit always Actual power is more than reactive power Apparent power is more than actual power Reactive power is more than actual power Reactive power is more than apparent power Actual power is more than reactive power Apparent power is more than actual power Reactive power is more than actual power Reactive power is more than apparent power 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 50 t 84.84 sin 3141 42.42 sin 314 t 60 sin 25 t 60 sin 50 t 84.84 sin 3141 42.42 sin 314 t 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following circuit component opposes the change in the circuit voltage ? Capacitance Resistance Inductance Conductance Capacitance Resistance Inductance Conductance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a capacitive circuit Increases with the increase of capacitance and decrease of resistance Increases with the decrease of capacitance and increase of resistance Increase with increase of capacitance and increase of resistance Increases with the decrease of capacitance and decrease of resistance Increases with the increase of capacitance and decrease of resistance Increases with the decrease of capacitance and increase of resistance Increase with increase of capacitance and increase of resistance Increases with the decrease of capacitance and decrease of resistance ANSWER DOWNLOAD EXAMIANS APP
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