Which of the following relations correctly shows how the magnitude of electrostatic…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Which of the following relations correctly shows how the magnitude of electrostatic force

F

between two fixed point charges varies with their separation

r

? (a)

F \propto \dfrac{1}{r}

(b)

F \propto r^{2}

(c)

F \propto \dfrac{1}{r^{2}}

(d)

F \propto \dfrac{1}{r^{3}}