Displays the electric field of a point charge. The electric field is sampled at fixed points and the charge can be interactively moved through space to see its effect on the electric field.

Basic introduction to vectors. Not interactive.

Electric field of a uniformly charged disk.

Adds up the electric field contributions of charged rings to get the electric field of a charged disk.

Calculates the electric field of a ring by integrating the contributions from a series of point charges.

Calculates the electric field outside a uniformly charged hollow sphere of charge by integrating the contributions from series of rings.

Calculates the electric field inside a uniformly charged hollow sphere by integrating the contributions from series of rings.

Calculates the magnetic field of a current-carrying loop by integrating the contributions from a series of current segments.

Shows the magnetic field from a current-carrying loop in the xy and xz planes.

Calculates the magnetic field of a current-carring wire by integrating the contributions from a series of current segments.

Shows the magnetic field of a current-carrying solenoid.

Shows the electric field of a series of rings.

Numerical integration of an RC circuit.

Magnetic field around a fast-moving proton.

Electric field around a fast-moving proton.

A qualitative introduction to Gauss's Law.

Propagation of electromagnetic waves from an antenna.

Visualisation of the planar propagation of perpendicular electric and magnetic fields.

Electric field of an accelerating source.

Spherical electromagnetic wavefront from an accelerating source in 2D.

Spherical electromagnetic wavefront from an accelerating source in 3D.

A model of a crystal solid showing crystal planes.

Interference from two sinusoidal waves.

Formation of x-ray powder rings.

A model of an ideal gas with hard-sphere collisions showing the mean free path of one atom.