AC Fundamentals, Circuit and Circuit Theory In AC. circuits, laminated iron is invariably used in order to Reduce eddy current loss Reduce circuit permeability Make assembly cheap and easier Increase heat radiation Reduce eddy current loss Reduce circuit permeability Make assembly cheap and easier Increase heat radiation ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 60 45 90 30 60 45 90 30 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 VC and VR None of the listed here VL and VR VC and VL VC and VR None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The purpose of a parallel circuit resonance is to magnify Frequency Current Voltage Power Frequency Current Voltage Power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of a circuit is the time in seconds taken after the application of voltage to each 50% of maximum value 25% of maximum value 63% of maximum value 90% of the maximum value 50% of maximum value 25% of maximum value 63% of maximum value 90% of the maximum value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces None of these The less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit None of these The less heat than produced by A.C. flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
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