Question Detail
Question
If the distance between two point charges is doubled, the force between them decreases by?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Coulomb's law follows an inverse-square relationship, so doubling the distance reduces the force by a factor of 2² = 4.
Hint
Recall that Coulomb's law is an inverse-square law — force falls off as 1/r².