AC Fundamentals, Circuit and Circuit Theory For the same peak value, which of the following wave has the least mean value? Triangular wave Square wave Sine wave Half wave rectified sine wave Triangular wave Square wave Sine wave Half wave rectified sine wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of domestic power supply in India is 50 Hz 250 Hz 200 Hz 150 Hz 50 Hz 250 Hz 200 Hz 150 Hz 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. 10 2.5 5 15 10 2.5 5 15 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a capacitive circuit Increases with the decrease of capacitance and increase of resistance Increase with increase of capacitance and increase of resistance Increases with the increase of capacitance and decrease of resistance Increases with the decrease of capacitance and decrease of resistance Increases with the decrease of capacitance and increase of resistance Increase with increase of capacitance and increase of resistance Increases with the increase of capacitance and decrease of resistance Increases with the decrease of capacitance and decrease of resistance 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 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 None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The square waveform of current has following relation between r.m.s. value and average value. r.m.s. value is equal to average value r.m.s. value of current is greater than average value None of these r.m.s. value of current is less than average value r.m.s. value is equal to average value r.m.s. value of current is greater than average value None of these r.m.s. value of current is less than average value ANSWER DOWNLOAD EXAMIANS APP
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