AC Fundamentals, Circuit and Circuit Theory All definitions of power factor of a series R-L-C circuit are correct except Ratio of W and VA Ratio of J and Z Ratio of net reactance and impedance Ratio of kW and kVA Ratio of W and VA Ratio of J and Z Ratio of net reactance and impedance Ratio of kW and kVA ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power consumed in a circuit element will be least when the phase difference between the current and voltage is 30° 60° 180° 90° 30° 60° 180° 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure resistive circuit Current can lead or lag the voltage by 90° Current lags behind the voltage by 90° None of the listed here Current is in phase with the voltage Current can lead or lag the voltage by 90° Current lags behind the voltage by 90° None of the listed here Current is in phase with the voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value Will change the maximum value of current at resonance Will change the impedance at resonance frequency Will change the resonance frequency Will increase the selectivity of the circuit Will change the maximum value of current at resonance Will change the impedance at resonance frequency Will change the resonance frequency Will increase the selectivity of the circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is A sinusoid of the same frequency A sinusoid of half the original frequency A sinusoid of double the frequency None of the listed here A sinusoid of the same frequency A sinusoid of half the original frequency A sinusoid of double the frequency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value, which of the following wave has the least mean value? Half wave rectified sine wave Square wave Sine wave Triangular wave Half wave rectified sine wave Square wave Sine wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
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