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    I have to do a van Der Graph experiment tomorrow for younger pupils as a demonstration.
    I am asking them to touch the van der Graph so their hair spikes up BUT I am terrified one of them will get electrocuted.

    How do I conduct this experiment SAFELY

    Thanks so much guys
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    It is safe. The amount of energy available is actually quite low, even though the pd is rather large.
    http://hypertextbook.com/eworld/vdg.shtml
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    They wouldn't make them available for schools if there was that much of a risk of someone getting electrocuted. You'll be fine.
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    Can they stand on the ground? or do they have to stand on a special mat?
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    Also, if someone touches them, will they be shocked? is it safe
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    What an appropriate user name for such safety-oriented questions!
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    ye, but what about the question?
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    I assume that you've read the article on the link posted? It has detailed instructions. There are bound to be many more sets of instructions on the web. That is going to be more productive than asking questions here.

    The point of the 'footstool' is that the volunteer has to be insulated from the ground. So their potential is raised to the potential of the generator but there is no current flowing since the volunteer isn't grounded, and therefore no shock.
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    what if they had no stool?
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    would it still be safe? if they were standing on wooden ground
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    Make sure you also tell the pupils that its not spelt "van der Graph" but "van der Graaf"

 
 
 
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