Ready to Use for Classroom Activities
Save countless hours of winding your own wire coils for alternative energy experimentation with this pack of four open core, 22–gauge copper wire coils. Pre–wound, they contain approximately 220 turns of enamel–coated magnet wire, and have a resistance of approximately 8 ohms. Size 2"L X 1"W by 1/4" thick per coil; weight: 1 oz.