Two point charges of `+2 mu C and +6 muC` repel each other with a force of `12N`. If each is given an additional charge of `-4 mu C`, what will be the new force?

Explanation

To solve the problem step by step, we will use Coulomb's law, which states that the force \( F \) between two point charges \( q_1 \) and \( q_2 \) separated by a distance \( r \) is given by:

\[ F = \frac{1}{4 \pi \epsilon_0} \frac{q_1 q_2}{r^2} \]

### Step 1: Identify the initial charges and the force
The initial charges are:
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