MCQ PracticeThe principle on which vector voltmeter is based isSubject: Electrical EngineeringTopic: Electrical Machine DesignAthat it works on the principle of complex variationBthat it measures the response of linear ramp voltageCsame as digital meterDthat it measures the amplitude of a single at two points and at the same time measures their phase differenceCorrect Answer: DPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the