The law which gives the force between two static charges in a medium is called
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Coulomb's Law
The force between two static (stationary) charges is given by Coulomb's law: it is proportional to the product of the charges and inversely proportional to the square of the distance between them. In a medium of permittivity \( \varepsilon = \varepsilon_0 \varepsilon_r \) it reads
\( \displaystyle F = \frac{1}{4\pi\varepsilon_0 \varepsilon_r}\,\frac{q_1 q_2}{r^{2}} \)
NCERT (2026-27):
Coulomb’s Law – “Coulomb’s law is a quantitative statement about the force between two point charges. … Coulomb measured the force between two point charges and found that it varied inversely as the square of the distance between the charges and was directly proportional to the product of the magnitude of the two charges and acted along the line joining the two charges.”