Magnet Probe for Field Detection Electricity & Magnetism_Electrostatics 2A rheostat with oxidized constantan

2A rheostat with oxidized constantan winding on a 300x44mm vitreous-enameled tube

supplied with a rubber seal for bell-jar vacuum demonstrations

pairing with a motor unit to trace the full light-to-electrical-to-mechanical energy chain

Glass prism with a 5-degree apex and 5° x 5° x 170° angles

letting students measure displacement during buoyancy investigations

Magnet Probe for Field Detection Electricity & Magnetism_Electrostatics 2A rheostat with oxidized constantanPlastic handled probe with a 1. 75 inch stationary ring and a free rotating bar magnet (blue and red poles) on the rotating ring, allowing students to map field direction across both axes by hand.