# Helmholtz-Coil Fields

Helmholtz-Coil Fields

Two parallel circular conductors both carry the current in the same direction. The circles lie parallel to the - plane and both have radius . The centers of the circles are at and . According to the cylindrical symmetry the observation points in the - plane can be taken at . Each circular conductor is parametrized by the angle , running from to . The three quantities , , are displayed for the five independent variables , , , , . The observation points are described by , and the source by , , . Units used are in the CGS system

I

1

x

y

R

(x,y,z)=(0,0,b)

(0,0,-b)

x

z

ϕ=0

α

0

2π

B

ρ

B

z

u

ρ

z

R

α

b

ρ

z

R

α

b