'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 串联电路公式 串联电路之关系，各处电流都相等。 总压等于分压和，总阻等于分阻和。...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 测量小灯泡电阻 测量小灯泡电阻，原理R等U除I. 需要电压电流表，灯泡滑动变阻器。 连...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电阻的串联与并联 电阻串联要变大，总阻等于分阻和，R=R1+R2. 电阻并联要变小，分阻倒...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 欧姆定律及其运用 欧姆定律说电流，I等U来除以R. 三者对应要统一，同一导体同一路。...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 火线与零线 火线L零线N，金属外壳接地E. 零线接地火有电，氖气发光是火线，氖管电阻...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 保险丝 铅锑合金保险丝，电阻较大熔点低。 过粗烧线不保险，过细电路常断电。 选择...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 焦耳定律 焦耳定律说热量，三个因素有关联。 电流平方是关键，乘上电阻和时间。 热...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电功率计算 电灯电器有标志，额定电压(U0)额功率(P0)。 正常发光用电流，I等P0除U0.I=P...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电功率 消耗电能的快慢，电功率用P表示。 1秒之内耗电能，叫这电器电功率。 P等电能...

'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 并联电路公式 并联电路之关系，总流等于支流和。 支压等于电源压，分阻倒和为倒总。...