- #1
LonghornDude8
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Homework Statement
A test charge +q is brought to a point A a distance r from the center of a sphere having a net charge +Q. Next, a test charge +2q is brought to a point B a distance 2r from the center of the sphere.
Compared with the electrostatic potential at A, the electrostatic potential at B is
A. smaller
B. the same
C. greater
Homework Equations
V=kq/r
U=kq1q2/r
The Attempt at a Solution
Because you are solving for electric potential I assume that you forget about the charge of the test charges and therefore you would get A. smaller. But if you use the charge of the test charges, you get b. the same. I'm just looking for someone to agree or disagree with me