Electrostatic Potential Energy and Distance
The electrostatic potential energy, $$E$$, between two point charges is given by the equation $$E = \frac{k q_1 q_2}{r}$$. How does the potential energy change if the distance, $$r$$, between the charges is tripled, assuming all other factors remain constant?
A
It becomes one-half as great
B
It remains unchanged
C
It decreases by a factor of 9
D
It becomes one-third as great
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