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 increase the selectivity of the circuit Will change the resonance frequency Will change the maximum value of current at resonance Will change the impedance at resonance frequency Will increase the selectivity of the circuit Will change the resonance frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit The current is in phase with the voltage The current can lead or lag by 90° The current leads the voltage by 90° The current lags behind the voltage by 90° The current is in phase with the voltage The current can lead or lag by 90° The current leads the voltage by 90° The current lags behind the voltage by 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Emax ___________ the average value is None of the listed here 0.636 Emax 0.434 Emax 0.707 Emax None of the listed here 0.636 Emax 0.434 Emax 0.707 Emax ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The transient currents are associated with the Impedance of the circuit Applied voltage to the circuit Changes in the stored energy in the inductors and capacitors Resistance of the circuit Impedance of the circuit Applied voltage to the circuit Changes in the stored energy in the inductors and capacitors Resistance of the circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the system is kept high To reduce voltage regulation of the line All of the listed here To maximize the utilization of the capacities of generators, lines and transformers To reduce line losses To reduce voltage regulation of the line All of the listed here To maximize the utilization of the capacities of generators, lines and transformers To reduce line losses 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 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 5 10 15 25 5 10 15 25 ANSWER DOWNLOAD EXAMIANS APP
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