9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models Convertible motor-generator running AC or

Convertible motor-generator running AC or DC in shunt or series wound configurations

sized for ripple tank and bulb-driven physics demonstrations

exposing the moving parts so students see directly how a DC current drives a rotating magnetic field

This a 3ft sample pack of PH1064C

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

9-Piece Material Density Cube Set with Wooden Storage Box Entomology & Zoology_Zoology Models Convertible motor-generator running AC orNine material 1 inch cube set spanning brass, iron, copper, aluminum, hardwood, softwood, nylon, PVC, and acrylic in a foam lined wooden case for density versus material investigations.