Testing current in a parallel circuit Illustration Play

The angle between the conductor and the field lines Whiteboard exercise Play

The angle between the conductor and the field lines Student activity Play

The angle between the conductor and the field lines Simulation Play

The angle between the conductor and the field lines Animation Play

The angle between two lines Animation Play

The area of a triangle Animation Play

The attraction of iron filings by magnets Animation Play

The connection of capacitors in parallel Whiteboard exercise Play

The connection of capacitors in parallel Student activity Play

The connection of capacitors in parallel Animation Play

The connection of capacitors in series Student activity Play

The connection of capacitors in series Whiteboard exercise Play

The correct perpendicular lines Whiteboard exercise Play

The defects of lenses Student activity Play

The equation of a tangent to a circle Whiteboard exercise Play

The equation of a tangent to a circle Student activity Play

The family of lines Whiteboard exercise Play

The family of lines Student activity Play

The family of lines y = 2x + c Animation Play

The field lines for two point charges Animation Play

The gradient of a line Student activity Play

The gradient of a line Whiteboard exercise Play

The lines of symmetry Whiteboard exercise Play

The magnetic field around a conductor Student activity Play