The electrical force between q1 and q2 is a repulsive force (-) of 5.4 x 10¹⁰ N (Option C).
How to calculate the electric force between q1 and q2?
The electrical force between q1 and q2 is calculated by applying the following formula as shown below;
F = kq₁q₂ / r²
where;
- k is the Coulomb's constant
- q₁ is charge 1
- q₂ is charge 2
- r is the distance between the charges
The electrical force between q1 and q2 is calculated as follows;
F = - (9 x 10⁹ x 6 x 4) / ( 2²)
F = - 5.4 x 10¹⁰ N
Thus, the electrical force between q1 and q2 is a repulsive force (-) of 5.4 x 10¹⁰ N due to strong attractive force between q2 and q3.