Economical Dynamo Subcategory_Electromagnetism Wooden fulcrum-balance simple-machine model with

Wooden fulcrum-balance simple-machine model with a sliding pivot

Current balance with a B

this empty 4mm-terminal holder accepts user-supplied parts where pre-wired modules don't cover the experiment

Educational variant of the 4

this green LED on a demonstration base with 4mm plug connections lights up when current flows in the correct direction

Economical Dynamo Subcategory_Electromagnetism Wooden fulcrum-balance simple-machine model withHand operated dynamo built around a 6V motor on a base, generating enough output when cranked to light a connected bulb during electromagnetic induction and energy conversion demonstrations.