题目内容
Alternating Current (AC) always flows in the same direction.
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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.
布尔运算表达式10 and ''的值为：
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