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Consists metal cylinder 5 cm diameter x 9 cm is mounted on an insulating rod attached to a heavy base. Height 24 cm approx. Shows that an electrostatic charge resides only on the outer surface of a conductor. Two pith balls are suspended inside the cylinder and another pair on top. When the cylinder is charged, the outer balls with diverge, but the inner ones will be unaffected. The metal cylinder 5 cm diameter x 9 cm is mounted on an insulating rod attached to a heavy base. Height 24 cm approx.
Please note, this item is "Build to Order" and will take up to 60 days to ship after placing your order.