AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value None of these Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces None of these The same heat as produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit None of these The same heat as produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a R-L-C circuit All of the listed here Power is consumed in resistance and is equal to IR Exchange of power takes place between capacitor and supply line Exchange of power takes place between inductor and supply line All of the listed here Power is consumed in resistance and is equal to IR Exchange of power takes place between capacitor and supply line Exchange of power takes place between inductor and supply line ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory All the rules and laws of D.C. circuit also apply to A.C. circuit containing Resistance only Inductance only All above Capacitance only Resistance only Inductance only All above Capacitance only ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that Both waves must have zero value at the same time Both waves must have same frequency None of these Both waves must have identical peak values Both waves must have zero value at the same time Both waves must have same frequency None of these Both waves must have identical peak values ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Imax the r.m.s. value is 1.414 Imax 0.707 0.9 0.5 Imax 1.414 Imax 0.707 0.9 0.5 Imax ANSWER DOWNLOAD EXAMIANS APP
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