Stackable Connecting Lead, Model AB Item Type_Mug Wider 70 x 20 x

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

this resistance box at plus-or-minus 1% on each step replaces dozens of fixed resistors at the bench

letting students rub one half against the same cloth and compare insulator and conductor behavior in triboelectric charging

this classroom Van de Graaff kit demonstrates charge conservation

Stackable Connecting Lead, Model AB Item Type_Mug Wider 70 x 20 xUsed to chain multiple branches off a single terminal, this insulated 4mm stackable safety lead carries up to 12A through nickel plated split hollow pins for branched circuit student work.