What is the primary advantage of using Alternating Current (AC) over Direct Current (DC) for long-distance power transmission?
Answer
It allows for efficient voltage stepping using transformers
AC systems are superior for bulk power because they allow voltage to be easily stepped up for transmission—which reduces current and associated resistive heat losses—and then stepped down to safe, usable levels at the consumer's location. Without the transformer, long-distance transmission would face prohibitive power losses.
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History of Power Transformers - YouTube
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