单选题-单题 较易0.85 引用4 组卷205
图是一正弦式交变电流的电压图象.从图象可知电压的最大值和周期分别为( )
![](https://img.xkw.com/dksih/QBM/2018/6/27/1976333017235456/2002720907657216/STEM/5fbe6a9609544e40857be20cb853cfe1.png?resizew=172)
![](https://img.xkw.com/dksih/QBM/2018/6/27/1976333017235456/2002720907657216/STEM/5fbe6a9609544e40857be20cb853cfe1.png?resizew=172)
A.20V,0.01s | B.20V,0.01s | C.20V,0.02s | D.20V,0.02s |
17-18高二下·全国·单元测试
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