AC Fundamentals, Circuit and Circuit Theory In a pure inductive 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 as high Be doubled Be reduced by half Be reduced to one fourth Be four times as high ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phosphors for which of the following pair are 180° out of phase for VL, VC and VR? VL and VR VC and VL None of these VC and VR VL and VR VC and VL None of these VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor Reduces load handling capability of electrical system Results in more power losses in the electrical system Overloads alternators, transformers and distribution lines All of the listed here Reduces load handling capability of electrical system Results in more power losses in the electrical system Overloads alternators, transformers and distribution lines All of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following coil will have large resonant frequency? A coil with large resistance A coil with low distributed capacitance A coil with low resistance A coil with large distributed capacitance A coil with large resistance A coil with low distributed capacitance A coil with low resistance A coil with large distributed capacitance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following circuit component opposes the change in the circuit voltage ? Conductance Inductance Capacitance Resistance Conductance Inductance Capacitance Resistance 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. 25 5 10 15 25 5 10 15 ANSWER DOWNLOAD EXAMIANS APP
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