题目内容
Direct Current (DC) flows one way, then the other way, continually reversing direction.
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Alternating Current (AC) always flows in the same direction.
Amplitude is the minimum voltage reached by the signal.
Peak-peak voltage is twice the peak voltage (amplitude).
The effective value of AC is the value of alternating voltage or current that will have the same effect on a resistance as a comparable value of direct voltage or current will have on the same resistance.
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