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⇤ ← Revision 1 as of 2008-04-25 21:59:52
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| The spark from the big Toepler-Holtz Machine carries higher current than the Department's Wimshurst machine or Van de Graaff Generator, possibly a large enough current to cause injury. Discharge the machine before touching it, or allowing students near it. | The spark from the big Toepler-Holtz Machine carries higher current than the Department's Wimshurst machine or Van de Graaff Generator, possibly a large enough current to cause injury. Discharge the machine before touching the metal parts, or allowing students near it. |
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| [Electrostatics:Electrostatics] | [:Electrostatics:Electrostatics] |
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| [Demonstrations:Demonstrations] | [:Demonstrations:Demonstrations] |
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| [Instructional:Home] | [:Instructional:Home] |
Toepler-Holtz Machine 5A50.15
The big Toepler-Holtz Machine which is used in many demonstrations is located in the [:ElectrostaticsCabinet:Electrostatics Cabinet], A3. There are two other smaller Toepler-Holtz Machines located in the [:ElectrostaticsCabinet:Electrostatics Cabinet], A4, but as of 4/2008 they are both in need of repair.
Use the insulated handles to bring the electrodes together before attaching any leads to the Toepler-Holtz.
When ready to use, separate the electrodes by several cm.
Turn the crank in the direction of the arrow. Sparks should jump between the electrodes.
The Toepler-Holtz works by amplifying initially small potential differences between the electrodes through a process of positive feedback, much like the [:WimshurstMachine:Wimsurst Machine].
When finished, discharge the machine: use the insulated handles to bring the electrodes together again.
The spark from the big Toepler-Holtz Machine carries higher current than the Department's Wimshurst machine or Van de Graaff Generator, possibly a large enough current to cause injury. Discharge the machine before touching the metal parts, or allowing students near it.
attachment:ToeplerHoltz5A5015.jpg
[:Electrostatics:Electrostatics]
[:Demonstrations:Demonstrations]
[:Instructional:Home]