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demonstrations:5_electricity_and_magnetism:5a_electrostatics:electrostatic_windmill:start

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Electrostatic Windmill

Description

Consists of a 'wheel' or 'windmill' with radially protruding spikes ending in 90-degree turns and a stand with a needle on top that the wheel balances on.

Purpose

To show the “action of points”, that charge can flow off pointed parts of a conductor maintained at a high potential.

Apparatus

Setup

Place windmill on top of the Van de Graff generator. When the generator is turned on the windmill will begin to rotate.

Notes

The Van de Graff generator vibrates significantly while running, so a piece of tape may be necessary to prevent the windmill from falling off of the generator.

The electrostatic windmill needs a high voltage to start turning, so move the grounding 'wand' far away from it.

Demo room information

Location —-
Maker Unknown
Current State Working
demonstrations/5_electricity_and_magnetism/5a_electrostatics/electrostatic_windmill/start.1550189239.txt.gz · Last modified: 2019/02/15 00:07 by demoroom