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Frictional
Electricity |
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51425 Glass Rod
Rounded ends, 300 x 12 mm. |
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51426 Ebonite Rod
Rounded ends, 300 x 18 mm.
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51427 Half Brass - Half Glass Rod
Rounded ends, 300 x 12 mm. |
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51428 Half Brass - Half Ebonite Rod
Rounded ends, 300 x 12 mm. |
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51429 Silk Rubber 20 cm square
51430 Flannel Rubber, 20 cm square
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