1:1  02-01[理·物理]徐老师教你计算不规则电流的有效值
推荐理由：徐老师为你讲述不规则电流的等效计算方法，教你用交流电PK直流电！ 讲解人：徐建烽，首都师范大学附属中学物理高级教师，北京海淀区骨干教师、学科带头人和先进工作者。 题面：一个变化电流随时间变化的图象如图所示，它是正弦交变电i = 8sin2πt /T 的正向部分。则该电流的有效值为_______。  【答案及详解】
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同学们，不规则电流的有效值你会计算了吗？ ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 查看更多本年级每周一题，请点击：http://www.jiandan100.cn/bbs/upload/forumdisplay.php?fid=384& 浏览本期“简单学习电子周报”完整目录：http://www.jiandan100.cn/bbs/upload/viewthread.php?tid=658848
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沙发#
发布于：2013-02-01 21:32
hao..................
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板凳#
发布于：2013-02-02 20:11
答案是 4
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地板#
发布于：2013-02-03 20:35
回复 #1 admin 的帖子
very very good~~~~ |
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4楼#
发布于：2013-02-03 20:46
2genhao2
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7楼#
发布于：2013-02-04 18:12
啊啊啊啊啊啊4根号2
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8楼#
发布于：2013-02-04 18:40
阿会计师ahjkah答案是？
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9楼#
发布于：2013-02-04 19:23
回复 #1 admin 的帖子
xuexi111111111111111111111111111111111111111111111111 |
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