Formulas (you will not require many of these!)
|q1 q2 |
r2
|q|
E=k 2
r
F (r)
E (r) =
q
|dq|
dE = k 2
I r
F=k
qenc
o
S
dq = λdx dq = σdA dq = ρdV
Φ=
E · dA =
q C=
∆V
o A
Cpp =
d
!−1
X 1
Ceq,ser =
Ci
i
X
Ceq,par =
Ci
i
c (∆V)2
q∆V
q2
=
=
U=
2C
2
2
= κo
C = κCair
Zf
F · ds
W=
i=
i
Zf
qE · ds
We =
i
∆U
q
0 = ∆K + ∆U
Zf
∆V = − E · ds
∆V =
i=
kq
r
k dq
dV =
r
X
X kqi
V=
Vi =
ri
i
i
E = −∇V = −
X qi qj
U=k
rij
ij pairs
∂V
∂V
∂V
x
^+
y
^ + + z^+
∂x
∂y
∂z
J · dA
J = −nevd
∆V = iR
Req,par
i
V=
dq
Zdt
Req,ser
X 1
=
Ri
i
X
=
Ri
!−1
i
P = i∆V = iR2 =
(∆V)2
R
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Formulas (you will not require many of these!)