alleryCoulomb found the force between two point charges varies inversely as the:
ACube of distance
BDistance itself
CRoot of distance
DSquare of distance
Answer & Solution
Correct answer: D. Square of distance
1. Coulomb measured the force between two point charges.
2. Doubling the distance cut the force to a quarter.
3. So the force varies inversely as the square of the distance.
_Source: syllabus Physics Part I, Chapter 1, Electric Charges and Fields._
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