试题详情
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(  )
A.20V,0.01sB.20V,0.01sC.20V,0.02sD.20V,0.02s
17-18高二下·全国·单元测试
知识点:交流电的u-t图像和i-t图像 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!