Description

Two-ohm reference coil non-inductively wound from double silk-covered constantan on a plastic rod

illustrating how current direction and field together produce force

and a pulley for introducing momentum

and rubber-footed plastic base

sized for whole-class visibility during gas-law and fluid-mechanics lessons

Double Folding Magnifier with 25mm Lens, 7x Subcategory_Water Baths Two-ohm reference coil non-inductively woundTwo 25mm lenses folding out together for 7x combined magnification in a pocket housing, stacking lenses the optical principle driving each additional power boost.

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Double Folding Magnifier with 25mm Lens, 7x Subcategory_Water Baths Two-ohm reference coil non-inductively wound

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