麻烦,要英文的答案Define AC and DC.What is the difference between AC and DC?

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麻烦,要英文的答案DefineACandDC.WhatisthedifferencebetweenACandDC?麻烦,要英文的答案DefineACandDC.Whatisthedifferenceb

麻烦,要英文的答案Define AC and DC.What is the difference between AC and DC?
麻烦,要英文的答案
Define AC and DC.What is the difference between AC and DC?

麻烦,要英文的答案Define AC and DC.What is the difference between AC and DC?
Define AC and DC. What is the difference between AC and DC?
定义交流和直流并说出他们的不同.
ANSWER:
DC stands for direct current, DC is the unidirectional flow of electric charge.
AC stands for alternating current, AC is the multi-directional flow of electric charge.
In alternating current, the movement of electric charge periodically reverses direction. In direct current (DC), the flow of electric charge is only in one direction.
Another difference between AC and DC involves the amount of energy it can carry. Each battery (DC) is designed to produce only one voltage, and that voltage of DC cannot travel very far until it begins to lose energy. AC voltage from a generator in a power plant can be bumped up or down in strength by another mechanism, called a transformer.
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