Description
Bare 20 SWG copper wire on a 250g reel approximating 140 feet
letting students read both small-cell and battery-stack voltages on a single instrument
Air-cooled rheostat at 36 ohms and 3A with constantan winding on a 300x44mm vitreous-enameled tube
Designed to electrolyze water into separately collected hydrogen and oxygen
Electromagnet Bell Demonstration, 3-6V AC Included_Rod & Base & Clamps Bare 20 SWG copper wireOpen mount electromagnet bell on an 8x4 inch wooden base with a push button and 4mm banana sockets, exposing every wire and hammer so students trace the bell's electromagnetic action.
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