- #1
JFonseka
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Homework Statement
Two charges lie on the x axis, +3q at the origin, and -2q at x=5.0m. The point on the x-axis where the electric potential has a zero value (when the value at infinity is also zero) is
Homework Equations
V = kQ/r
U = qV
U = q[tex]_{1}[/tex]kq[tex]_{2}[/tex]/r
The Attempt at a Solution
Not sure at all.
If I substitute V = 0 in those equations, r will turn out to be infinity.
But the answers are multiple choice:
a. 1.0 m.
b. 2.0 m.
c. 2.5 m.
d. 3.0 m.
e. 4.0 m.