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SpringWater
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Homework Statement
Consider a uniformly charged insulating sphere with radius R and total charge Q in- side the sphere.
If Q = 2.9 × 10−6 C, what is the magnitude of the electric field at r=R/2 K=columbs constant. The answer to this question is E=(K)(Q) / (2)*(R)^(2)
The second part of the question which I am having trouble with is...
If the sphere has a radius of 3.3 m, find the potential at r = 0. The Coulomb constant is 8.98764 × 109 N · m2/C2 . Follow the convention that the electric potential at r = ∞ is zero. answer in units of V
Homework Equations
Q=2.9E-6 C
r=3.3m
k=8.98764E9 N*m^2 / C^2
The Attempt at a Solution
So I have set up the problem as two integrals
that are shown in the picture. I thought that this would give me the electric potential at r=0 however i am still getting it incorrect. I am not sure what I am doing wrong any help would be appreciated.
Thank you,