This is on my syllabus for my physics synoptic exam on tuesday so help would be much appreciated and reads as follows.
Explain how the Van de Graaf generator leads to the production of MeV particles.
NB this is not an exam question or homework - would just like an explanation
This is not a homework question for the record. An external question which came up in my revision!
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/June%202007/6735_01_que_20070614.pdf
QUESTION 3
Parts B and C
I am having great difficulty grasping the concept of Lenz's law. As far as I am unware it is derived as:
"any current driven by an induced e.m.f opposes the change causing it"
I do not really understand what this means - help would be greatly appreciated :)
When measuring the fringe width of a superposition pattern from a monochromatic source - I am using a laser. What problems/inaccuracies could I have when measuring it?