AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is Same as peak value 0.5 of peak value Zero 0.707 of peak value Same as peak value 0.5 of peak value Zero 0.707 of peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a circuit is the time in seconds taken after the application of voltage to each 63% of maximum value 90% of the maximum value 25% of maximum value 50% of maximum value 63% of maximum value 90% of the maximum value 25% of maximum value 50% of maximum value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I 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 84.84 sin 3141 60 sin 25 t 60 sin 50 t 42.42 sin 314 t 84.84 sin 3141 60 sin 25 t 60 sin 50 t 42.42 sin 314 t 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 Volt-amperes Reactive power Instantaneous power True power Volt-amperes Reactive power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Inductive reactance Capacitance Capacitive reactance Resistance Inductive reactance Capacitance Capacitive reactance Resistance ANSWER DOWNLOAD EXAMIANS APP
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