Ammeters and voltmeters used in sinusoidal AC power systems indicate which of the following values of the waveforms measured?（）
- APeak value
- BRoot-mean-square value
- CAverage value
- DMaximum value
问题
Ammeters and voltmeters used in sinuso
参考解析：
分类：船舶电气与船舶安全题库
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