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     </DefaultPicUrl><Intro>第    周   星期      第    节                                             年   月   日




课题</Intro><SoftIntro2>第    周   星期      第    节                                             年   月   日




课题

第二节 电功率

执教

 


教学
目标

1掌握电功率的概念（物理意义、定义、计算公式、单位）
2理解额定电压、额定功率。
3知道额定电压、额定功率与实际电压、实际功率的区别。


&lt;SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Tim</SoftIntro2><SoftIntro>
    【内容简介】第    周   星期      第    节                                             年   月   日




课题

第二节 电功率

执教

 


教学
目标

1掌握电功率的概念（物理意义、定义、计算公式、单位）
2理解额定电压、额定功率。
3知道额定电压、额定功率与实际电压、实际功率的区别。


<SPAN style="COLOR: black; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-ascii-font-family: 'Tim</SoftIntro><SoftIntroEncode>第    周   星期      第    节                                             年   月   日




课题

第二节 电功率

执教

 


教学
目标

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&lt;TD style="BORDER-RIGHT: black 0.75pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: black 0.75pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 42.55pt; PADDING-TOP: 0cm; BORDER-BOTTOM: black 0.75pt solid; HEIGHT: 27.25pt; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid black .75pt" width=57&gt;
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&lt;TR style="HEIGHT: 72.15pt"&gt;
&lt;TD style="BORDER-RIGHT: black 0.75pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: black 0.75pt solid; WIDTH: 36.75pt; PADDING-TOP: 0cm; BORDER-BOTTOM: black 0.75pt solid; HEIGHT: 72.15pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid black .75pt" width=49 colSpan=2&gt;
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&lt;TD style="BORDER-RIGHT: black 0.75pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 415.45pt; PADDING-TOP: 0cm; BORDER-BOTTOM: black 0.75pt solid; HEIGHT: 72.15pt; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid black .75pt; mso-border-top-alt: solid black .75pt" vAlign=top width=554 colSpan=5&gt;
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&lt;P style="MARGIN: 0cm 0cm 0pt; mso-line-height-alt: 0pt"&gt;&lt;SPAN lang=EN-US style="mso-bidi-font-size: 10.5pt"&gt;&lt;FONT size=2&gt;2理解额定电压、额定功率。&lt;o:p&gt;&lt;/o:p&gt;&lt;/FONT&gt;&lt;/SPAN&gt;&lt;/P&gt;
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&lt;TR style="HEIGHT: 18pt"&gt;
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<!-- 这个是背景黑色半透明遮罩，不能包含弹窗，否则会出现弹窗透明现象 -->
<div id="bjtidu_ground" onclick="closeModel()"> </div>
<!-- 这个是用来展示弹框内容的 -->
<div id="login_model"><iframe name='LogOnFrame' id='LogOnFrame' src='' width='300' height='400' fullscreen=true download=false print=false openfile=false frameborder='no' border='0'></iframe></div>
<script>
    /* 打开弹出框的功能 */
   function openModel() {
        document.getElementById("bjtidu_ground").style.display = 'block';
        document.getElementById("login_model").style.display = 'block';
       // 禁止浏览器滚动
        document.body.style.overflow = 'hidden';
    }
    /**
    * 关闭弹出框的功能*/
    function closeModel() {
        document.getElementById("bjtidu_ground").style.display = 'none';
        document.getElementById("login_model").style.display = 'none';
        // 不遮挡后面的内容将body设置为原始样式，也就是实现可滚动
        document.body.style.overflow = 'auto';
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  $("#wxlog").click(function(){
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$(function(){
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    else{
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})
</script>
<script type="text/javascript" src="/Template/Default/Skin/MMskin/js/tools.js"></script>
<script>
(function(){
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        bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
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        bp.src = 'http://push.zhanzhang.baidu.com/push.js';
    }
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(bp, s);
})();
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<script src="/Template/Default/Skin/MMskin/js/SoftInfo.js"></script>
<script>
window._bd_share_config = { "common": { "bdSnsKey": {}, "bdText": "", "bdMini": "2", "bdPic": "", "bdStyle": "0", "bdSize": "16" }, "share": {} }; with (document) 0[(getElementsByTagName('head')[0] || body).appendChild(createElement('script')).src = 'http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion=' + ~(-new Date() / 36e5)];
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<script type="text/javascript">

jQuery(function() {
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{PE.Label id="A评论标签" nodeId="{PE.Field id="cone" fieldname="NodeID" /}" /}
<script type="text/javascript">


        function copyToClipboard() {
            var txt = window.location.href;
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                alert("链接地址已成功复制到剪贴板。");
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