Gradient-B drift
This interactive simulator explores Gradient-B Drift in Electricity & Magnetism. B_z(x,y) with weak gradient; orbit from q(E+v×B) at local B — gyration + drift. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Electricity & Magnetism.
Key terms
- gradient
- drift
- gradient b drift
- electricity
- magnetism
How it works
Why toroidal plasmas need careful shaping: a spatially varying |B| bends guiding-center orbits perpendicular to both B and ∇B.
More from Electricity & Magnetism
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Magnetic Mirror (Bottle)
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Dipole Radiation Pattern
Time-averaged power ∝ sin² θ in the plane containing the dipole axis (far-field cartoon).
Bode Diagram (RC low-pass)
|H| in dB and phase vs log f; f_c = 1/(2πRC) marked — first-order pole intuition.
Skin Effect
δ = √(2/(ωμσ)): AC current density vs depth in a conductor (1D exponential).
Eddy Current Tube
Magnet fall: dv/dt = g in air vs g − k v in copper pipe (toy drag model).
Plasma Ball (Stylized)
Glass sphere, center electrode, streamers toward cursor — visual only.