Van de graff generator gives the same current. How?

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SUMMARY

The Van de Graaff generator operates as a nearly ideal current source, producing a low constant current regardless of the voltage level. When a person touches the generator, the voltage changes without a significant current flow, which is why it is safe to touch. The generator's behavior is comparable to that of a charged capacitor, maintaining high voltage while delivering minimal current. This characteristic allows it to supply the same small current at various electrical potentials, confirming its classification as a current source.

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The reason why we don't die when we touch a Van de Graff generator is because it produces a very low constant current and when you touch it only the voltage change and not the current. It's like a current source rather. But how does that produce constant current?

Thanks in advance.
 
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It's like a current source rather. But how does that produce constant current?

It's more like a charged capacitor...one with high voltage and very low current...

Now that you mention it, I don't think I've seen an equivalent circuit for one...

edit: I just checked wikipedia and they have a different perspective..."Since a Van de Graaff generator can supply the same small current at almost any level of electrical potential, it is an example of a nearly ideal current source."

http://en.wikipedia.org/wiki/Van_de_Graaff_generator

If I recall the voltage drops dramatically at discharge... before buiilding again...more like a capacitor, but it's arguable...
 
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