Eureka/Constantan Bare Wire, Model H Subcategory_Color and Light 5% accuracy

5% accuracy

each fitted with 98 iron-rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near

sized for resistance coils and thermocouple legs where copper-nickel alloy holds its value across temperature swings

Used to measure current by reading compass-needle deflection inside a coil

Eye model seated in a bony orbit socket illustrates the protective skull relationship of the eye alongside its internal anatomy in a combined teaching unit

Eureka/Constantan Bare Wire, Model H Subcategory_Color and Light 5% accuracyReel 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.