焦耳定律

<p style="margin-top:27px;margin-right:0;margin-bottom:27px;margin-left:0;padding:0 0 0 0 ;line-height:28px"><br/></p><p style="margin-top:27px;margin-right:0;margin-bottom:27px;margin-left:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;color: rgb(51, 51, 51);letter-spacing: 0;font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">　　焦耳定律说热量，三个因素有关联。</span></span></p><p style="margin-top:27px;margin-right:0;margin-bottom:27px;margin-left:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;color: rgb(51, 51, 51);letter-spacing: 0;font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">　　电流平方是关键，乘上电阻和时间。</span></span></p><p style="margin-top:27px;margin-right:0;margin-bottom:27px;margin-left:0;padding:0 0 0 0 ;line-height:28px"><span style="font-family: 微软雅黑;color: rgb(51, 51, 51);letter-spacing: 0;font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">　　热量单位是焦耳，损耗能量常用此。</span></span></p><p><br/></p>