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Van de Graaff

I found this question in a phy6 edexcel paper:
Outline briefly how does a Van de Graaff generator can accelerate electrons to a very high energies

And i Have the mark scheme and it says:
(Electron gun at) high voltage/potential/p.d. (1)
Relative to earth/below earth [Accept anode for earth] (1)
Exerts force on/repels electrons (1)
(because of large) charge/electrons on hemisphere/dome/belt (1) Max 3

But can someone explain it to me in full sentences,and if possible can write more about Van de Graaff ?
Thx in advance :redface: :ahee:
It's much easier for you to read this than it is for me to explain it.
http://en.wikipedia.org/wiki/Van_de_Graaff_generator
Reply 2
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Neofytos
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Stonebridge
It's much easier for you to read this than it is for me to explain it.
http://en.wikipedia.org/wiki/Van_de_Graaff_generator

Is it ? Because before coming here i checked wiki,and that article,but ooh gosh,they make simple things complicated. Can u give a try plz :biggrin:

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