Question

How do I visualize the in-homogeneous magnetic field?

Answer 1

In a Magnetic field, there are 4 terms (divergence, gradient, curvature and twist). I understand the divergence and gradient terms but why is the curvature term represented with ∂Bx∂z∂Bx∂z & ∂By∂z∂By∂z while the twist is represented with ∂Bx∂y∂Bx∂y & ∂By∂x∂By∂x?

I can't visualize the curvature and twist terms and some visual aid will be appreciated.

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