Połączenia oporników (rezystorów) szeregowe
I
R 1
U 1
U
U
R 2
2
U 3
R 3
U = R I ; U = R I ; U = R I 1
1
2
2
3
3
U = U + U + U
1
2
3 = ( R + R + R
1
2
3 ) I = R I z
R
R
R
R
z =
+
+
1
2
3
n
R
∑ R
z =
k
k =1
U
U 1
R 1
U 2
R 1
U 3
R 1
U
U
U
I =
; I =
; I
1
=
R
2
R
3
R
1
2
3
U
U
U
U
I = I + I + I =
+
+
=
1
2
3
R
R
R
R
1
2
3
z
1
1
1
1
1
R 2
R
3
R
=
+
+
⇔ R =
R
z
1
R
2
R
3
R
1
R 2
R + 1
R 3
R +
2
R
3
R
z
1
n
1
= ∑
R
R
z
=1 k
k
n
G = G + G + G
⇒ G =
1
2
3
∑ G
z
z
k
k =1