Question

Two positive charges of 10 C are separated by 12 meters. What is the force between the charges?

Answer 1

In order to calculate the force between the charges, we can use the formula below:

`F=K\cdot(q_1\cdot q_2)/(d^2)`

Where F is the force (in Newtons), K is the Coulomb constant (K = 9 * 10^9), q1 and q2 are the charges (in Coulombs) and d is the distance between them (in meters).

So, for q1 = q2 = 10 C and d = 12 m, we have:

`\begin{gathered} F=9\cdot10^9\cdot(10\cdot10)/(12^2) \\ F=(900\cdot10^9)/(144) \\ F=6.25\cdot10^9\text{ N} \end{gathered}`

Therefore the force between the charges is 6.25 * 10^9 N.