Electronics ETA AC Certification Practice Exam 2024 questions and complete correct answers
In alternating current: A. current flow alternates back and forth B. voltage alternates positive and negative C. resistance changes between high and low D. A and B above - correct answer D. A and B above Historically, DC came before AC because: A. DC is more useful B. DC is easier to transmit over long distances C. AC requires more advanced technology D. AC is less efficient - correct answer C. AC requires more advanced technology An AC voltage source schematic symbol: A. is a sine wave in a circle B. represents an idealized voltage source C. is considered to have zero internal resistance D. all of the above - correct answer D. all of the above
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electronics eta ac certification practice exam