- Current Balance
- Electricity Distribution
Field patter - 3D
We sometimes forget to state the obvious. The field patterns associated with magnets occur in 3 dimensions in space - thanks to the student who dropped a magnet in the pot of filings !
Field Patter Flat Coil
Magnetic field patterns associated with a flat coild of wire.
Field pattern - bar magnet
Iron filings used to show the field lines associated with the bar magnet below the paper.
Field pattern - like poles
The field pattern, shown by iron filings, associated with two like poles facing each other under a sheet of paper.
Field pattern - long straight wire
A very old OHP that still serves its purpose.
Field pattern - unlike poles
Iron filings used to demonstrate the field pattern associated with two opposite poles facing each other under the paper.
- Field Pattern Solenoid
Flemming's Left Hand rule
Another old OHP
- Hall Probe
- Hall Voltage
Current passing through a wire placed in a magnetic field experiences a force (Demonstration of Flemming's Left Hand Rule)
Ernest Lawrence cyclotron. Patented in 1934 the first was approximately the size of a hand.
Field pattern for a bar magnet.
Force on a current-carrying conductor in a magnetic field. Explained using field lines.
- Motor Effect
Westminster kit - components
The components used by the Westminster Motor kit to make a simple D.C. motor.
Westminster kit - D.C. motor
Complete DC motor from the Westminster kit
- Work Done, Energy and Power