Can we use Coulomb's law to find the force between two charged conducting spheres for any distance between them?

Explanation

To determine whether we can use Coulomb's law to find the force between two charged conducting spheres at any distance, we need to analyze the behavior of electric charges in conductors and the conditions under which Coulomb's law is applicable.

### Step-by-Step Solution:

1. **Understanding Coulomb's Law**:
Coulomb's law states that the force \( F \) between two point charges \( q_1 \) and \( q_2 \) separated by a distance \( r \) is given by:
\[
F = k \frac{|q_1 q_2|}{r^2}
...