Question

How does electric force depend on the amount of charge and the distance between charges

Answer 1

F = k×$\frac{q1q2}{r2}$

Explanation:

• The attractive or repulsive forces which act between any two charged species is an electric force.
• The electric force depends on the distance between the charged species and the amount of charge which can be calculated by the formula given as follows  

    F = k×$\frac{q1q2}{r2}$

where, K is coulombs constant, which is equal to -                                  9 x10^9 $Nm^2/C^2.$

• The unit for K is newtons square meters per square coulombs.
• This is known as Coulomb's Law.