<html>
<head><title>The Coulomb's law </title></head>
<body leftmargin=100 bgcolor=cyan>
<pre> <font style="font-family:Arial"> <b><i>


THE COULOMB'S LAW </b></i>
<font style="font-family:'Times New Roman'">
 

The relationship of the electrical force between two charged objects, the
charge of each object and the distance between charges is summarized in<b>
Coulomb's law.</b>

Just like in Newton's Law of Gravitation, the Coulomb's Law follows a
similar relationship for the electrical force, charges and their distances.
French physicist Charles Coulomb discovered this law during the eighteenth
century. <b><i>Coulomb's law </b></i>states, <b><i>"the force between two charges is
proportional to the product of the charges and is inversely proportional to
the square of the distance between them."</b></i>

		<b>F<sub>e</sub>=K(Q<sub>A</sub>Q<sub>B</sub>/s<sup>2</sup>)</b>
Where:
	<b>F<sub>e</b></sub>=electrical force
	<b>Q<sub>A</b></sub>=charge A charge of one particle
	<b>Q<sub>B</b></sub>=charge B charge of other particle
	s=distance between two charges
	K=proportionality constant

The proportionality constant <b>k</b> in this law is also similar to <b>G</b> in Newton's
Law of Gravitaion. Only instead of being a very small number, the electrical
proportionality <b>k</b> is a very big number. If we round off, it is equal to.

		<b>K=9,000,000,000 N-m<sup>2</sup>/c<sup>2</sup>
		K=9 x 10<sup>9</sup> N-m<sup>2</sup>/c<sup>2</sup>