Rubbing Cloth Woolen for Physics Lab 300 mm square.
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For demonstrating that an electrical charge resides on the external surface of a conductor. Net with cord on insulating pillar with metal tripod base. Overall height 350 mm approx.
A pack of 12 in plastic case.
Small brass plated spheres mounted on curved arms jointed with ebonite insulating handle.
Overall length 250 mm approx.
Rod Ebonite for Physics Lab With rounded ends; 300 x 12.5 mm.
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