Asked by ruth
what is the potential energy of 4 point charges each of value Q at the corners of a square of side length a.
Answers
Answered by
Damon
potential energy is a function of distance from the charges. Where do you want it?
Answered by
ruth
at the centre or one of corners
Answered by
Damon
Well, at a corner it is infinite since we have that division by zero problem when r = 0
at the middle, find the potential of one of them at a distance of (a/2)sqrt 2
The neat thing about potentials is that they add like scalars. Just multiply by 4.
at the middle, find the potential of one of them at a distance of (a/2)sqrt 2
The neat thing about potentials is that they add like scalars. Just multiply by 4.
Answered by
ruth
so it will be kq(4Q/a/2)
Answered by
Damon
Suspect so :)
Answered by
tanu
4kqq/r^2
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