AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 15 10 25 5 15 10 25 5 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 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t 60 sin 25 t 84.84 sin 3141 60 sin 50 t 42.42 sin 314 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Capacitive reactance Capacitance Inductive reactance Resistance Capacitive reactance Capacitance Inductive reactance Resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The voltage of domestic supply is 220 V. This figure represents R.m.s. value Mean value Average value Peak value R.m.s. value Mean value Average value Peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Consumes some power on average None of the listed here Does not take power at all from a line Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Consumes some power on average None of the listed here Does not take power at all from a line ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a circuit containing R, L and C, power loss can take place in Capacitance only Inductance only Resistance only All of the listed here Capacitance only Inductance only Resistance only All of the listed here ANSWER DOWNLOAD EXAMIANS APP
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