Magnets and Electromagnets
Explore magnets and electromagnetism with interactive experiments. Reveal magnetic field lines with iron filings, test which objects are magnetic, build your own electromagnet and discover how motors and generators work.
Magnets and Electromagnets experiments
Magnet Playground
Drag magnets around a field of compasses to reveal field lines.
Try it nowMagnetic or Not?
Test coins, clips, foil and more to see what sticks.
Try it nowBuild an Electromagnet
Add coil turns and current, then pick up paper clips.
Try it nowMotor Maker
Spin a coil in a magnetic field to build a motor.
Try it nowGenerator
Spin a coil between magnets, light a bulb and watch AC on a graph.
Try it now
Key equations
Like poles repel, unlike poles attractB ∝ N × IF = B × I × L