Eureka/Constantan Bare Wire, Model H Subcategory_Lab Jacks letting students switch between low

letting students switch between low and mid-current scales without swapping instruments

used as the standard positive partner to ebonite in triboelectric investigations

5mm copper wire on a clear acrylic base support side-by-side comparison of how loop count multiplies the on-axis magnetic field at fixed current

this four-metal cylinder set of brass

supplying the third-color line for breadboarded circuits already using black and red on the supply rails

Eureka/Constantan Bare Wire, Model H Subcategory_Lab Jacks letting students switch between lowReel of fine gauge 30 SWG bare constantan wire at 0. 31mm and 125g, sized for compact precision resistor windings and thermocouple junctions in student built apparatus.