Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" this simple tangent galvanometer turns

this simple tangent galvanometer turns Oersted's effect into a quantitative ammeter calibrated against Earth's field

Bicycle dynamo on a 4mm-socket base with a parallel-wired MES lamp and 2

Portable compact magnetic stirrer with a 4-inch round plate

Seamless translucent silicon tubing in a 40-inch length with 11 mm outer and 7 mm bore

Dry Field Mapping Kit for Electric Field Visualization Base Size_2.3" this simple tangent galvanometer turnsDesigned to let students draw their own electrodes on conductive graph paper and trace equipotential lines with a multimeter, this kit makes electric field patterns visible without high voltage.