The principle of conservation of charge Whiteboard exercise Play

The properties of a series circuit Animation Play

The resistance of a light bulb filament Student activity Play

The rotation of a frame Animation Play

The rotation of the frame Whiteboard exercise Play

The rotation of the frame Student activity Play

The shape of the field lines Animation Play

The significance of proportionality constants Animation Play

The strength of electric field around a charged sphere Animation Play

The strength of electric field between two parallel plates Animation Play

The structure of a light bulb Illustration Play

The structure of an electroscope Animation Play

The sum of current in a node Animation Play

The summing of resistances Whiteboard exercise Play

The summing of resistances Student activity Play

The work done by a current Student activity Play

The work done by an electric current Student activity Play

The work done by an electric current Whiteboard exercise Play

Thomson's experiment Animation Play

Total resistance Student activity Play

Total resistance Simulation Play

Total resistance Whiteboard exercise Play

Total resistance Simulation Play

Total resistance in a parallel circuit Whiteboard exercise Play

Total resistance in a parallel circuit Student activity Play