Electrical properties of materials © copyright M.J.Morris 2002 |

Coulombs law |
||

Coulombs law allows us to calculate the force of attraction or repulsion
between charged particles. The force is proportional to the charge carried by
each particle^{*}. The more charge that is present then the stronger
the force of attraction or repulsion will be. The force is inversely proportional
to the square of the distance between the particles. The greater the distance
the weaker the force of attraction or repulsion will be.*protons and electrons possess a fixed amount of charge but you will encounter other particles later called ions which can carry different amounts of charge |
||

Eq 1. Coulombs law |
F = Force of attraction or repulsion measured in Newtons (N) k = a constant q _{1} = The magnitude of charge on particle one in Coulombs (C)q _{2} = The magnitude of charge on particle two in Coulombs (C)r = The distance between the particles in metres (m) |