Ebonite Friction Rod


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Was: $2.95
Now: $2.49
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Product Overview

Ebonite friction rods are useful for electrostatic experimentation, and can be used for charging electroscopes.

Rod Length: 11.75 Inches / 30cm
Rod Diameter: 1/2" / 12mm


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  • 5
    Charge Polarity

    Posted by walter clark on Jun 19th 2017

    The Ebonite rod charges minus. A glass test tube charges plus. But that is only with some kinds of rubbing cloth. It is really useful to find the right combination of cloth and solid object material to have both plus and minus. (Which can be revealed with an electrometer.)