GENERAL KNOWLEDGE

Detailed explanation-1: -Answer and Explanation: According to Coulomb’s Law, the force between two charged objects is inversely proportional to the square of their distance. Therefore, if the distance is tripled, the force will weaken by a factor of 9.

Detailed explanation-2: -Explanation: The electrostatic force is directly related to the product of the charges and inversely related to the square of the separation distance. Tripling one of the charges would serve to triple the force.

Detailed explanation-3: -Explanation: The force between the two charges is directly proportional to the product of the charges and inversely to the square of the distance between them. Hence, if charge on q1 is tripled (and other charge and distance is kept constant, the force between the two charges is tripled.

Detailed explanation-4: -So, when the distance between the two charges is halved, the force is increased four times.

Detailed explanation-5: -The size of the force varies inversely as the square of the distance between the two charges. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value.