Hollow Cylinder Electrostatics Demonstration Apparatus prop65 free of magnetic-core saturation effects

free of magnetic-core saturation effects for AC circuit

stable Alnico fields and matching keepers across this bar-magnet pair give the classroom a reliable workhorse for ferromagnetism and pole-orientation demonstrations

Designed to grip a wide variety of optical components on standard bench rails

Square die-cast alloy boss head with metal thumbscrews

Frontal and median head sections expose brain

Hollow Cylinder Electrostatics Demonstration Apparatus prop65 free of magnetic-core saturation effectsPith balls suspended both inside and outside a charged metal cylinder make visible proof that electrostatic charge resides only on the outer surface of a conductor.