This topic has been archived. It cannot be replied.
-
工作学习 / IT技术讨论 / 请问各位还记得电磁场的大虾,关于电容的计算。如果两片金属的面积是A,中间只有两种绝缘材料,介电常数分别为e1和e2,厚度为d1和d2,电容计算的公式是什么?在线等……
-pyramid(树木);
2003-10-1
(#1393927@0)
-
c = e* A/d. C = 1/(1/c1+1/c2) = 1/(d1/e1*A + d2/e2*A)
-wins(wins);
2003-10-1
(#1393969@0)
-
谢谢,可我咋觉得不是串联呢?两种绝缘材料是直接接触的,中间没有第三片金属。
-pyramid(树木);
2003-10-1
(#1393979@0)
-
I am not sure what you mean 中间只有两种绝缘材料. Are they in series or parellel?If 两种绝缘材料 are in series, then 1/C=1/C1+1/C2, if 两种绝缘材料 are in parellel, C = C1 + C2.
-wins(wins);
2003-10-1
{96}
(#1393988@0)
-
第一种情况,导体-绝缘材料1-导体-绝缘材料2-导体。第二种情况,导体-绝缘材料1-绝缘材料2-导体。前者肯定是串联,但是我需要的是后者的公式,应该不是一样的啊。
-pyramid(树木);
2003-10-1
(#1394057@0)
-
If so, it is too complicated for me.
-wins(wins);
2003-10-1
(#1394090@0)
-
They should be the same.
-looker(looker);
2003-10-1
(#1394093@0)
-
http://www.ncert.nic.in/electricity/electricity/electrostatics/derivation_compositemedium.htm
-nexttime(11);
2003-10-1
(#1394144@0)
-
谢谢!!!看来串联是对的,加不加金属板那里的电位都一样。
-pyramid(树木);
2003-10-1
(#1394210@0)
-
本来想帮你, 楼上这位解释的太清楚了,无话可说了.
-noproblem(大可以);
2003-10-1
(#1394157@0)
-
第三种情况,导体1 ----- 一半e1一半e2 ---- 导体2
-tztz(真爽);
2003-10-2
(#1395043@0)
-
两个面积各是一半的电容并联
-mars01(Mars01);
2003-10-11
(#1408914@0)