天气预报 > 教育 > 并联电阻公式
并联电阻公式
更新时间: 2021-02-10 15:06:48  

1、总电阻值的计算:1/R总=1/R1+1/R2+……+1/Rn,即总电阻的倒数等于各分电阻的倒数之和。

2、两电阻并联总值为: R总=(R1*R2)/(R1+R2);对于n个相等的电阻并联,公式就简化为R并=R/n。

3、并联电路:并联的各支路电压相等,干路电流等于各个支路和。

4、表达式:电阻R1R2R3……Rn并联,电压U1=U2=……=Un干路电流:In=I1+I2+……+In由于P=UI,I=U/R,代入,并联电阻的功率比P1:P2:P3……:Pn=U1^2/R1:U2^2/R2……Un^2/Rn=1/R1:R2……1/Rn由于是纯电阻,发热比Q1:Q2……:Qn=Pn比=1/R1:R2……1/Rn。

关键词: 并联 电阻 公式

并联电阻公式相关经验

天气预报

最新推荐

页面:/news/view-1006169/ | 耗时:0.0472 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1006169 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1006169 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1006169 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3471757,1207207,1716786,371521,923987,837461,722538,438543,1671431,1462631,462453,2956294,1708673,1077885,2876713,488605,3122852,1176512,599835,1370631,1395569,1030889,719921,1786830,439592,2770157,2269882,3318149,3313936,2214381) ORDER BY field (ArticleID,3471757,1207207,1716786,371521,923987,837461,722538,438543,1671431,1462631,462453,2956294,1708673,1077885,2876713,488605,3122852,1176512,599835,1370631,1395569,1030889,719921,1786830,439592,2770157,2269882,3318149,3313936,2214381)