- #1

- 195

- 0

## 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?