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CUET · PHYSICS · PYQ PAPER 2023

The force between two electric charges is expressed by the equation : \( F = \frac{kq_1q_2}{r^2} \).
Which of the following is a correct statement ?

  1. A The equation applies to point charges
  2. B k is Boltzmann's constant
  3. C r is the radius of the spheres on which the two charges are placed
  4. D The equation can only be applied to uniform electric fields
Verified Solution

Answer & Solution

Correct Answer

(A) The equation applies to point charges

Step-by-step Solution

Detailed explanation

Coulomb's Law is specifically derived to describe the electrostatic force between stationary point charges. In this equation, represents the electrostatic constant (not Boltzmann's constant), and is the distance between the charges, not their radius. A) The equation applies to…