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 impedance at resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit Will change the resonance frequency Will change the impedance at resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit Will change the resonance frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be 141.4 V 282.8 V 111 V 100 V 141.4 V 282.8 V 111 V 100 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms, Both resistance and inductance carry equal currents The current through the resistance is more The current through the resistance is less None of the listed here Both resistance and inductance carry equal currents The current through the resistance is more The current through the resistance is less None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Ohm is unit of all of the following except Capacitive reactance Resistance Capacitance Inductive reactance Capacitive reactance Resistance Capacitance Inductive reactance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit Apparent power is zero Reactive power is zero Actual power is zero None of the listed here Apparent power is zero Reactive power is zero Actual power is zero None of the listed here 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 identical peak values None of the listed here Both waves must have zero value at the same time Both waves must have same frequency Both waves must have identical peak values None of the listed here Both waves must have zero value at the same time Both waves must have same frequency ANSWER DOWNLOAD EXAMIANS APP
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