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 <title><![CDATA[这个怎么算？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950.html]]></link>
 <description><![CDATA[Latest 50 replies of 这个怎么算？]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[就是没有学习好啊&nbsp;&nbsp;&nbsp;&nbsp;惭愧啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1268346.html]]></link>
 <author><![CDATA[林423]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 May 2012 15:26:31 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼主中学没认真读物理么？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1267859.html]]></link>
 <author><![CDATA[静芳]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 May 2012 03:55:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[二个并联电流是40A
那么，一个就是20A
由于： P = I U
所以一块电热板功率是： P = 20A * 220 V = 4400W =&nbsp;&nbsp;4.4 KW
二块并联 就是8.8KW。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1267851.html]]></link>
 <author><![CDATA[psxf]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 May 2012 03:44:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[串联分压，并联分流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1264834.html]]></link>
 <author><![CDATA[gaobbbgao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 11 May 2012 14:15:10 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[刚开始学啊！指教指教]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1264724.html]]></link>
 <author><![CDATA[林423]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 11 May 2012 11:01:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主你是电工吗？ [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1264101.html]]></link>
 <author><![CDATA[孙涛]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 10 May 2012 11:38:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个功率因数约等于1,由于分布电容和分布电感很小，可以忽略不计]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1264099.html]]></link>
 <author><![CDATA[孙涛]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 10 May 2012 11:36:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[怎么说电压220V一个KW一般情况下通过的电流大约是5A。380V大约是2A。我这样理解算是对吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1262818.html]]></link>
 <author><![CDATA[林423]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 May 2012 10:43:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[功率等于电压乘电流不就直接算出来了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261843.html]]></link>
 <author><![CDATA[wananjushi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 05:27:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第3楼yuheng722于2012-05-06 20:47发表的&nbsp;&nbsp;:
请考虑功率因数！
[/quote]
这又不是感性负载或者容性负载不用考虑功率因素。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261743.html]]></link>
 <author><![CDATA[z4131246]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 03:24:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是两个加热板的功率，纯电阻性负载，功率因数为1]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261738.html]]></link>
 <author><![CDATA[dengjie99]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 03:20:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[本来就是纯电阻负载]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261655.html]]></link>
 <author><![CDATA[wxyqzjl]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 01:41:09 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[P=IU~~~~~~~~~~~~~~~]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261631.html]]></link>
 <author><![CDATA[liubing3620]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 01:12:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这是个纯阻性负载，计算方法&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;功率=电压X电流&nbsp;&nbsp;&nbsp;&nbsp;两个负载是并联的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261615.html]]></link>
 <author><![CDATA[liuhanqi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 00:35:50 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[二个并联电流是40A
那么，一个就是20A
由于： P = I U
所以一块电热板功率是： P = 20A * 220 V = 4400W =&nbsp;&nbsp;4.4 KW
二块并联 就是8.8KW。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261604.html]]></link>
 <author><![CDATA[meipingboy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 07 May 2012 00:22:49 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[应该两条]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261495.html]]></link>
 <author><![CDATA[sylgq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 May 2012 13:42:06 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[电加热板是电炉类，不用考虑功率因数的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261493.html]]></link>
 <author><![CDATA[jdk1126]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 May 2012 13:34:34 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[请考虑功率因数！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261464.html]]></link>
 <author><![CDATA[yuheng722]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 May 2012 12:47:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[当然是两个了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261394.html]]></link>
 <author><![CDATA[tjzhmjj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 May 2012 11:16:25 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[两个一共8.8KW]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374950#1261392.html]]></link>
 <author><![CDATA[xujian]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 May 2012 11:13:36 +0000]]></pubdate>
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