I'm confused.So a dipole needs a nonuniform field for the net force to not equal zero, cool.
My question is how do they go from
F = -∇(μ * B) = ((μ_z)(dB/dz))*(z unit vector)
how come the gradient has no x or y parts?
My question is how do they go from
F = -∇(μ * B) = ((μ_z)(dB/dz))*(z unit vector)
how come the gradient has no x or y parts?
