A particle of charge q₁ is placed at the origin. A is

located at x = 12 m.

The electric potential at A is VA = 27 V

+

91

A

1. [6 points] Calculate the charge of the particle:

91 =

C

2. [10 points] You are asked to place another

charged particle q2 on the x-axis at a distance "d"

from the origin in a way so that the total electric

potential at x = 12 m is zero. q2 should be smaller

than qı/n+

91

A

d

92

a. [4 points] What value of q2 would you select

92 =

C

b. [6 points] Where would you put it?

d =

m