11The RMS value of a sinusoidal voltage with peak Vm is:AVm√2BVm/√2C2Vm/πDVm/2View AnswerDiscussWorkspaceReportSaveEasy
12In a purely capacitive circuit, current:ALags voltage by 90°BIs in phaseCLeads voltage by 90°DIs zeroView AnswerDiscussWorkspaceReportSaveEasy
13Apparent power S, real power P and reactive power Q are related by:AS = PQBS² = P² + Q²CS = P − QDS = P + QView AnswerDiscussWorkspaceReportSaveEasy
14Power factor is the cosine of the angle between:AVoltage and currentBTwo voltagesCTwo currentsDReal and reactive power onlyView AnswerDiscussWorkspaceReportSaveEasy
15Total power in a balanced three-phase system is:A√3 VL IL cos φB3 VL ILCVL IL cos φDVL IL / √3View AnswerDiscussWorkspaceReportSaveEasy