- #1
jaejoon89
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Homework Statement
If you bring 2 charges, Q_1 (=+6 micro Coulombs) and Q_2 (= -2 micro Coulombs), from infinity to positions on the x-axis of x = -4 cm and 4 cm, respectively, is it possible to bring a 3rd charge Q_3 ( = +3 micro Coulombs) from infinity to a point on the x-axis between the charges where the potential is 0? If it is possible, where would this be on the x axis?
a) It is not possible.
b) x = 0 cm
c) x = +2 cm
d) x = +6 cm
e) x = +1.5 cm
Homework Equations
V = kq/r
The Attempt at a Solution
Is it asking to find the null V point btwn the 2 charges (regardless of the 3rd charge)? Or the 3-point null?