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 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 Both waves must have zero value at the same time Both waves must have same frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Form factor for a sine wave is 0.707 1.414 1.11 0.637 0.707 1.414 1.11 0.637 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The big size of the inductor The statement given is false The reactance of the inductor The current flowing in the inductor The big size of the inductor The statement given is false The reactance of the inductor The current flowing in the inductor 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 None of the listed here Consumes some power on average 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 None of the listed here Consumes some power on average Does not take power at all from a line ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L only C only R only L or C L only C only R only L or C ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of coil Is unaffected by the supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Increases with the increase in supply frequency Is unaffected by the supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Increases with the increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
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