AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Zero Unity Less than unity Greater than unity Zero Unity Less than unity Greater than unity ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory All definitions of power factor of a series R-L-C circuit are correct except Ratio of J and Z Ratio of kW and kVA Ratio of net reactance and impedance Ratio of W and VA Ratio of J and Z Ratio of kW and kVA Ratio of net reactance and impedance Ratio of W and VA ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value which of the following wave will 'have the highest r.m.s. value? Sine wave Triangular wave Square wave Half wave rectified sine wave Sine wave Triangular wave Square wave Half wave rectified sine wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory At very low frequencies a series R-C circuit behaves as almost purely Resistive Capacitive None of the listed here Inductive Resistive Capacitive None of the listed here Inductive 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 None of these VC and VL VC and VR VL and VR None of these VC and VL VC and VR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The series and parallel resonance on L-C circuit' differs in that Parallel resonance needs a low-resistance source for a sharp increase in impedance Series resistance needs a low-resistance source for sharp rise in current Parallel resonance needs a low-resistance source for a sharp rise in line current Series resonance needs a high-resistance source for sharp increase in current Parallel resonance needs a low-resistance source for a sharp increase in impedance Series resistance needs a low-resistance source for sharp rise in current Parallel resonance needs a low-resistance source for a sharp rise in line current Series resonance needs a high-resistance source for sharp increase in current ANSWER DOWNLOAD EXAMIANS APP
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