Rod Ebonite for Physics Lab With rounded ends; 300 x 12.5 mm.
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Rectangular casted metal case and polythene insulated lid with finger flap to facilitate removal.
Fitted with 4 mm. socket. Front glass window slides up to allow insertion of ionizing material in chamber, gold leaf support plate and scale to show deflection, with one pair of leaves.
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.
Electroscope Pith Ball for Physics Lab A chrome plated brass pillar mounted on a wooden base with 2 pith balls spheres on unspun silk.
Biots Apparatus for Physics Lab is a spherical conductor on insulating stand with insulated handle, to show that electrostatic charge resides on outer surface
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