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bravo340
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Homework Statement
We have a non uniform line charge density [tex]P_{l}[/tex] = [tex]\rho_{l}[/tex] cos[tex]\phi[/tex]
It is a spiral line where 0 [tex]\leq[/tex] [tex]\phi[/tex] [tex]\leq[/tex] 4 [tex]\pi[/tex]
It is on the x-y plane with z=0.
r varies: r ( [tex]\phi[/tex] ) = [tex]\phi[/tex] * [tex]r_{0}[/tex] + a
We need to find the Potential and Electric Field at the origin.
Homework Equations
V = (KQ/r)
E = (KQ)/ r[tex]^{2}[/tex]
E = -[tex]\nabla[/tex]V
The Attempt at a Solution
The east way would be to find the Potential and then to find the Electric Field by using the relationship between E and the gradient of V.
I think this problem wouldn't be as tough if r was constant.
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