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 resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit Will change the impedance at resonance frequency Will change the resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit 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? VC and VR None of these VL and VR VC and VL VC and VR None of these VL and VR VC and VL ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a series resonant circuit, the impedance of the circuit is Maximum Minimum Zero None of these Maximum Minimum Zero None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Exhibit unwanted inductive and capacitive effects Create more electrical noise Are likely to melt under excessive eddy current heat Consume more power Exhibit unwanted inductive and capacitive effects Create more electrical noise Are likely to melt under excessive eddy current heat Consume more power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Emax ___________ the average value is None of the listed here 0.434 Emax 0.636 Emax 0.707 Emax None of the listed here 0.434 Emax 0.636 Emax 0.707 Emax ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to Peak voltage Average voltage R.m.s. voltage None of the listed here Peak voltage Average voltage R.m.s. voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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