AC Fundamentals, Circuit and Circuit Theory In a circuit containing R, L and C, power loss can take place in Resistance only Capacitance only All of the listed here Inductance only Resistance only Capacitance only All of the listed here Inductance only 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 VR VC and VL None of the listed here VL and VR VC and VR VC and VL None of the listed here 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. 10 25 5 15 10 25 5 15 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Create more electrical noise Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Create more electrical noise Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be reduced to one fourth Be reduced by half Be four times as high Be doubled Be reduced to one fourth Be reduced by half Be four times as high Be doubled ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In AC. circuits, laminated iron is invariably used in order to Reduce circuit permeability Increase heat radiation Make assembly cheap and easier Reduce eddy current loss Reduce circuit permeability Increase heat radiation Make assembly cheap and easier Reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
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