Frosted Glass Gas Jar Cover, 2 inch, 1.7mm Thick Subcategory_Power Supplies For measuring specific gravity of

For measuring specific gravity of battery electrolyte and assessing state of charge

Four 153 x 76mm plates - each holding 98 iron-rod plotting compasses in a 14 x 7 matrix - assemble flat or as the faces of a cube to display 2D and 3D field-line patterns

a flexible mounting option for pulley and force demonstrations

Pair of nylon-fringed metal pompons on insulated stands that fan into wide cones under mutual repulsion when charged

Five-hundred-microamp analog DC microammeter at 10uA resolution

Frosted Glass Gas Jar Cover, 2 inch, 1.7mm Thick Subcategory_Power Supplies For measuring specific gravity ofFrosted glass gas jar cover measures 2 inches with 1. 7mm thickness for sealing gas jars during collection and demonstration procedures.