Problem A15:
In the figure above, three small "point" charged objects are located on the y-axis.
One is at the origin, with a charge of n2q. The second is at
y= + √ 3 d
with a charge of n1q. Finally, the third object is at
y= - √ 3 d
with a charge of n1q. What is the electric field at a point on the x-axis located
a distance of d from the origin? That is, if E = n3 kq/d2
i, what is n3 ?
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