电功率

<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">　　消耗电能的快慢，电功率用</span><span style="font-family:微软雅黑">P表示。</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">1秒之内耗电能，叫这电器电功率。</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">P等电能除时间P=u/t，电压电流两相乘P=UI。</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">　　功率单位是瓦特，</span><span style="font-family:微软雅黑">1(W)等1伏安，1W=1VA。</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">　　已知</span><span style="font-family:微软雅黑">p、t求耗能，W等于p乘t。</span></span></p><p><br/></p>