AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over The quarter cycle The whole cycle Unsymmetrical part of the wave form The half cycle The quarter cycle The whole cycle Unsymmetrical part of the wave form The half cycle 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 R only L only C only L or C R only L only C only L or C 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° Current is in phase with the voltage None of the listed here Current can lead or lag the voltage by 90° Current lags behind the voltage by 90° Current is in phase with the voltage None of the listed here 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 resonance frequency Will change the impedance at resonance frequency Will increase the selectivity of the circuit Will change the maximum value of current at resonance Will change the resonance frequency Will change the impedance at resonance frequency Will increase the selectivity of the circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value which of the following wave will 'have the highest r.m.s. 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 main cause of silting up a channel, Defective head regulator Non-regime section Inadequate slope All of these Defective head regulator Non-regime section Inadequate slope All of these ANSWER DOWNLOAD EXAMIANS APP
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