The basic use of a Van de Graaf generator is to separate electric charges and build them up, frequently for demonstration purposes. A "big" version can be used to provide a burst of energy for generating X-rays, or for accelerating electrons or protons. The accelerated charges find some practical applications as well as some uses in scientific investigations.
It's an electrostatic generator, and it will create a considerable difference of potential. Use the links below to read more about it and what we use it for.
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