# Physics Question - Straightening the graph Electrostatic Force?

Coulomb started with two identical charges spheres at a distance R. The force between them is F. If the charged sphere separation is changed to 2/3 R, then the force between them is becoming...

Update:

a) 4/9 F

b) 2/3 F

c) 3/2 F

d) 9/4 F

### 2 Answers

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- Andrew SmithLv 76 months agoFavorite Answer
F is proportional to 1/ r^2

F2/F = r^2 / ( 2/3 r^2) =9/4

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