Steel Extension Spring, 56 x 19mm Subcategory_Rulers and Measuring supplying the small components needed

supplying the small components needed to extend electromagnetic induction work beyond the standard core and coil pair

Range 10Hz to 300Hz/sec

providing a high-density bob for pendulum and collision-momentum student investigations

1% accuracy on double silk-covered constantan coils

Slidable electromagnet on this 6V drive lets students vary amplitude while the chrome-plated steel prongs (10 x 25 x 300mm) sustain an accurate 60Hz vibration on a horizontal or vertical base

Steel Extension Spring, 56 x 19mm Subcategory_Rulers and Measuring supplying the small components needed19mm diameter steel extension spring at 56mm rest length, stretching to approximately 290mm under load, sized for hands on Hooke's Law measurement with hanging weights.