For Experiments in Detection of Electric charge and Determination of Polarity
Diameter 16 MM
Transparent and Red
Cash in Advance (CID), Cash Advance (CA)
500 , , Piece Per Day
Western Europe, Australia, North America, Eastern Europe, Middle East, South America, Asia, Central America, Africa
For experiments in detection of electric charge and determination of polarity. Consists of an Erlenmeyer ask 250mL, and a plated rod with a knob of diameter 16mm (2/3in) passing through a rubber stopper. A pair of aluminium leaves are suspended from the rod.