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 same frequency Both waves must have zero value at the same time Both waves must have identical peak values None of these Both waves must have same frequency Both waves must have zero value at the same time Both waves must have identical peak values ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit 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 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 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a circuit is the time in seconds taken after the application of voltage to each 90% of the maximum value 25% of maximum value 63% of maximum value 50% of maximum value 90% of the maximum value 25% of maximum value 63% of maximum value 50% of maximum value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 60 sin 25 t 84.84 sin 25 t 42.42 sin 314 t 30 sin 50 t 60 sin 25 t 84.84 sin 25 t 42.42 sin 314 t 30 sin 50 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A parallel AC. circuit in resonance will Act like a resistor of low value Have a high voltage developed across each inductive and capacitive section Have current in each section equal to the line current Have a high impedance Act like a resistor of low value Have a high voltage developed across each inductive and capacitive section Have current in each section equal to the line current Have a high impedance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 282.8 V 141.4 V 200 V 127.4 V 282.8 V 141.4 V 200 V 127.4 V ANSWER DOWNLOAD EXAMIANS APP
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