Demonstration Induction Coil, Heavy Gauge Enamelled Copper Wire Wound On Former 110 X 30 mm. Secondary Coil Of Fine Enamelled Copper Wire On Former 120 X 82 mm. Both Coils Fitted With 4 mm Sockets, With Primary Of Heavy Gauge Enamelled Copper Wire
Hookes Law, set of 5 springs with different spring constants, forces required for 1cm extension are 0.25N, 0.5N, 1N, 1.5N, and 2.5N respectively, Pre-stress has been removed for accurate results, With a hook to support a weight hanger and a red arrow to indicate position