Home › JEE Advanced › Electromagnetism › The dependence of electrostatic force on separat…
The dependence of electrostatic force on separation between two point charges is best described as
A$F \propto r$
B$F \propto r^2$
C$F \propto \dfrac{1}{r}$
D$F \propto \dfrac{1}{r^2}$
Answer & Solution
Correct answer: D. $F \propto \dfrac{1}{r^2}$
Coulomb's law states that the electrostatic force varies inversely as the square of the distance between the charges. Hence $F \propto \dfrac{1}{r^2}$.
Related questions
Certain galvanometers use eddy currents to provide electromagnetic:The SI unit of inductance is the:Eddy current flow patterns are said to resemble swirling eddies in:Foucault lived from 1819 until:Who discovered eddy currents?Swirling induced currents in a metal plate are called:What in Faraday's equation represents Lenz's law?Lenz's law says the induced current opposes the change in: