Cases:
1a. B Only (Circle)
1b. B Only (Helix)
1c. v ∥ B (Line)
2. E Only (Parabola)
3. E ∥ B (Var. Pitch Helix)
4a. E ⊥ B (Cycloid Drift)
4b. Velocity Selector (F_net = 0)
5. Oblique E & B (α = 45°)
Camera:
Zoom +
Zoom −
Frame Path
Reset View
3D Trajectory
Velocity v⃗₀
Electric Field E⃗
Magnetic Field B⃗ (+Z)
F⃗ₑ = qE⃗
F⃗ᵦ = q(v⃗×B⃗)
F⃗ₙₑₜ