AC Fundamentals, Circuit and Circuit Theory In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value 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 Will change the maximum value of current at resonance Will change the resonance frequency Will change the impedance at resonance frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The safest value of current the human body can carry for more than 3 second is 9 mA 5 mA 4 mA 15 mA 9 mA 5 mA 4 mA 15 mA 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. 15 5 2.5 10 15 5 2.5 10 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will Be doubled Be reduced by half Be reduced to one fourth Be four times at high Be doubled Be reduced by half Be reduced to one fourth Be four times at high ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The equation of 50 Hz current sine wave having r.m.s. value of 60 A is 60 sin 50 t 84.84 sin 3141 42.42 sin 314 t 60 sin 25 t 60 sin 50 t 84.84 sin 3141 42.42 sin 314 t 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 200 V 141.4 V 282.8 V 127.4 V 200 V 141.4 V 282.8 V 127.4 V ANSWER DOWNLOAD EXAMIANS APP
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