MCQ PracticeEfficiency of a power transformer is of the order ofSubject: Electrical EngineeringTopic: TransformersA100 per centB98 per centC50 per centD25 per centCorrect Answer: BPractice 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