5. Given two point dipoles (P₁,P₂) both pointing in the same direction (parallel). Relative to p₁, the second
dipole is at coordinate r₀. What is the electrical force vector on the second dipole? You can choose your
coordinate system any way you want but it's beneficial to choose wisely.
P₁
0
2
r₀
We
can
take p₁ ~P₂ ~ 2
X
P₂
also take plane that contains 2 dipoles + z-axis as
constant dipole so we can use
F=(P₂E₁)
二
4
Ls field of dipole
3
βιρε (3ιοςέθ-1)
απο 5ος
PiPe
sph.coords
(4.20)
ρε= ρε αθ
p = picas
adid =
x2-plane
(3ug 20-1)) s Pipe (3cos20-1) Pro,+300020]
F = Dr. (Pipe (30920-1)) s
4πε
Dr. Caso
-
1
2 cos
(-50)
drops fast!
Υπεο Γο
= cos 20+1
+ S-208.