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Two charges are a distance d apart. By what factor will the force between the charges change if the separation between them is quadrupled?

Select one:

a. 8

b. 4

c. 1/16

d. 1/4
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1/ 16

as Force

, F1 = k q1 q2 / r^2

F2 = kq1 q2 / (4r)^2

F2 /F1 = 1/ 16
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