Alnico U-Shape Magnet, 37mm Subcategory_Gas Generation six convex/concave lenses spanning 10-50cm

six convex/concave lenses spanning 10-50cm focal lengths

and twelve 50g slotted weights for vector-addition work

Slidable electromagnet on this 6V drive lets students vary amplitude while the chrome-plated steel prongs (10 x 25 x 300mm) sustain an accurate 60Hz vibration on a horizontal or vertical base

this object screen provides a stable projection surface for ray diagrams and lens investigations in physics coursework

Alnico U-Shape Magnet, 37mm Subcategory_Gas Generation six convex/concave lenses spanning 10-50cmAn 18mm pole gap on this 37 x 13 x 10mm Alnico U shape concentrates field strongly enough to bend filings into clear field lines, with a keeper bar bridging the poles in storage.