AC Fundamentals, Circuit and Circuit Theory What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? 45° 180° 30° 90° 45° 180° 30° 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of L Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of L ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 5 2.5 10 15 5 2.5 10 15 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 Does not take power at all from a line None of the listed here Consumes some power on average Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Does not take power at all from a line None of the listed here Consumes some power on average 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 identical peak values Both waves must have zero value at the same time None of the listed here Both waves must have same frequency Both waves must have identical peak values Both waves must have zero value at the same time None of the listed here Both waves must have same frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance affects the direct current flow At the time of turning on and off At all the time of operation Only at the time of turning off Only at the time of turning on At the time of turning on and off At all the time of operation Only at the time of turning off Only at the time of turning on ANSWER DOWNLOAD EXAMIANS APP
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