小明家买了一个电热水壶,其铭牌如下表所示(1)铭牌中50Hz的含义是.(2)小明和小华想测量电热水壶的实际功率,当只有电热水壶工作时,小明发现在3min内脉冲式电能表的指示灯闪了90次,电
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 15:51:56
![小明家买了一个电热水壶,其铭牌如下表所示(1)铭牌中50Hz的含义是.(2)小明和小华想测量电热水壶的实际功率,当只有电热水壶工作时,小明发现在3min内脉冲式电能表的指示灯闪了90次,电](/uploads/image/z/898336-64-6.jpg?t=%E5%B0%8F%E6%98%8E%E5%AE%B6%E4%B9%B0%E4%BA%86%E4%B8%80%E4%B8%AA%E7%94%B5%E7%83%AD%E6%B0%B4%E5%A3%B6%2C%E5%85%B6%E9%93%AD%E7%89%8C%E5%A6%82%E4%B8%8B%E8%A1%A8%E6%89%80%E7%A4%BA%EF%BC%881%EF%BC%89%E9%93%AD%E7%89%8C%E4%B8%AD50Hz%E7%9A%84%E5%90%AB%E4%B9%89%E6%98%AF.%EF%BC%882%EF%BC%89%E5%B0%8F%E6%98%8E%E5%92%8C%E5%B0%8F%E5%8D%8E%E6%83%B3%E6%B5%8B%E9%87%8F%E7%94%B5%E7%83%AD%E6%B0%B4%E5%A3%B6%E7%9A%84%E5%AE%9E%E9%99%85%E5%8A%9F%E7%8E%87%2C%E5%BD%93%E5%8F%AA%E6%9C%89%E7%94%B5%E7%83%AD%E6%B0%B4%E5%A3%B6%E5%B7%A5%E4%BD%9C%E6%97%B6%2C%E5%B0%8F%E6%98%8E%E5%8F%91%E7%8E%B0%E5%9C%A83min%E5%86%85%E8%84%89%E5%86%B2%E5%BC%8F%E7%94%B5%E8%83%BD%E8%A1%A8%E7%9A%84%E6%8C%87%E7%A4%BA%E7%81%AF%E9%97%AA%E4%BA%8690%E6%AC%A1%2C%E7%94%B5)
xMOQ
i®ۙ阂\?QbLX!/X#Xl;*ԡ[3]wqV:ġ,u6&wN'2z+^v|W֨۔9^ғj AO%r&\`;Öy\YkMx5Y6/X3b@A{TOCc=
qcFd
lʜ 쟽m?s oo0K
Hd@^Oݮ;sYvZ"@178bcӂ
ƿQ<
g&Gz:==1{h$=c[h ;H&ӂSLNs ғ( 4*MUUꆅ#(6fXQ%C4cD
-kӐ؈D%@)