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(B) The electrostatic potential $V$ at a distance $r$ from a point charge $q$ is given by the formula: $V = \frac{1}{4\pi\epsilon_0} \frac{q}{r}$.From

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$A$ graph showing $V$ is inversely proportional to $r$.

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(B) The electrostatic potential $V$ at a distance $r$ from a point charge $q$ is given by the formula: $V = \frac{1}{4\pi\epsilon_0} \frac{q}{r}$.From this expression,it is clear that the potential $V$ is inversely proportional to the distance $r$,i.e.,$V \propto \frac{1}{r}$.As $r$ increases,$V$ decreases following a rectangular hyperbola curve.Therefore,the graph representing $V$ versus $r$ is a curve where $V$ decreases as $r$ increases,which corresponds to the relationship $V \propto \frac{1}{r}$.

Which of the following graphs correctly shows how the electrostatic potential $V$ varies with distance $r$ from a point charge?

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