AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is Same as peak value 0.707 of peak value Zero 0.5 of peak value Same as peak value 0.707 of peak value Zero 0.5 of peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value Will increase the selectivity of the circuit Will change the impedance at resonance frequency Will change the maximum value of current at resonance Will change the resonance frequency Will increase the selectivity of the circuit Will change the impedance at resonance frequency Will change the maximum value of current at resonance Will change the resonance frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In an AC. circuit, a low value of kVAR compared with kW indicates High power factor Low efficiency Maximum load current Unity power factor High power factor Low efficiency Maximum load current Unity power factor ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these Cosine of phase angle difference between current and voltage R/Z Ratio of useful current to total current Iw/I all of these Cosine of phase angle difference between current and voltage R/Z Ratio of useful current to total current Iw/I ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following refers to a parallel circuit? 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 The current through each element is same ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Resistance Capacitive reactance Inductive reactance Capacitance Resistance Capacitive reactance Inductive reactance Capacitance ANSWER DOWNLOAD EXAMIANS APP
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