If the distance between the charges doubles, the coulomb's force between the charges _____?

اگر چارجز کے درمیان فاصلہ دوگنا ہوجاتا ہے تو ، چارجز کے درمیان کولمب کی طاقت _____؟

One-fourth

Halves

Distance between the charges

None of these

Explanation

According to Coulomb’s Law, the electrostatic force $F$ is inversely proportional to the square of the distance between the charges:
$F propto frac{1}{r^2}$

If the distance doubles ( $r to 2r$ ), the force reduces to one-fourth of its original value:
$F' = frac{F}{4}$