# Two charges of # -2 C # and # 4 C # are at points # (-2 , 4, 8) # and # ( 2 ,4, 8 )#, respectively. Assuming that both coordinates are in meters, what is the force between the two points?

##### 1 Answer

The distance formula for Cartesian coordinates is

Where

Let

Hence the distance between the two charges is

The electrostatic force between two charges is given by

Where

and its value is

magnitudes of the charges and

Here

Negative sign shows that the force between the two charges is attractive.