3-Piece Conductor Set for Electrostatics Lab Equipment_Power Supplies Rectangular casted metal case and

Rectangular casted metal case and polythene insulated lid with finger flap to facilitate removal & front glass window

and string length

portable enough for mobile demonstrations of current-driven magnetic field strength

Copper-block plug key switch with two 4mm terminals and a removable plastic-guarded plug

letting students directly observe pressure-volume changes under stacked weights

3-Piece Conductor Set for Electrostatics Lab Equipment_Power Supplies Rectangular casted metal case andThree brass conductors sphere, cylinder, and cone on interchangeable ebonite insulated pillars, used to map how charge density concentrates at points of higher surface curvature.