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$54.00
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Electrophorus Demonstration
This is a good commercial electrophorus and is similar to the student made ones you'd encounter in the static labs in the Science Joy Wagon workbooks.
Produce a strong spark repeatedly, without recharging. When surfaces are clean and the humidity is not excessive, sparks 6mm long can be produced over many days after the initial charging. The base is thick plastic with four rubber feet attached for convenient handling. The plastic material produces a strong frictional charge when rubbed with fur or other material. This charge is held for long periods. Its flatness and high rigidity also insure minimum separation and maximum induction, between the dielectric and the removable plate. The 18cm diameter aluminum plate is designed to eliminate any sharp edges which could cause leakage. This, combined with its high capacitance due to size, permits it to acquire and transport substantial charges. An insulating handle is attached. For charging, a fur friction pad is recommended, but not included. With instructions.
Item tags:
static, charge, electrophorus |
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