Question Detail
Question
Which of the following is correct about Coulomb's law?
I. The bodies were small compared to the distance between them.
II. The force, F (of attraction or repulsion) was directly proportional to product of the two charges, and inversely proportional to the square of distance between them.
III. The bodies were appreciably large compared to the distance between the bodies.
I. The bodies were small compared to the distance between them.
II. The force, F (of attraction or repulsion) was directly proportional to product of the two charges, and inversely proportional to the square of distance between them.
III. The bodies were appreciably large compared to the distance between the bodies.
Correct Answer
Option A is the correct answer.
Detailed Explanation
Coulomb's law primarily applies to point charges, which means the size of the charged bodies should be negligible compared to the distance between them (Statement I is correct, III is incorrect). It correctly states that the electrostatic force between two point charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them (Statement II is correct).
Hint
Consider the ideal conditions under which Coulomb's law is most accurately applied, especially regarding the size of the charges and their separation.