Charles Augustin de Coulomb published this law in the late 18th century. It was derived from observations he made while experimenting with a Torsion Balance. During his experiments, Coulomb discovered that the electric force is directly proportional to the charges and inversely proportional to the distance between the centers of each object.

Coulombâ€™s law is used to solve for the force exerted by one charged object onto another. This force can either be attraction, between a positive and a negative charge, or repulsion, between two like charges.

Coulombs constant, k, is a proportionality constant that takes into account the properties of space. For more information on the derivation of k view the link below. However, all that is needed for physics 30 is to know that k=8.99x10^9 Nm2/C2. http://www.16pi2.com/joomla/aetherphysics/coulombsconstant.html

Where: Fe = Force (N) q = Charge (C) r = distance between the centers of the charged objects (m) k = 8.99x10^9 Nm2/C2

Coulomb's LawFrom physick.wikispaces.com(Carrie MacLeod)Charles Augustin de Coulomb published this law in the late 18th century. It was derived from observations he made while experimenting with a Torsion Balance. During his experiments, Coulomb discovered that the electric force is directly proportional to the charges and inversely proportional to the distance between the centers of each object.

Coulombâ€™s law is used to solve for the force exerted by one charged object onto another. This force can either be attraction, between a positive and a negative charge, or repulsion, between two like charges.

Coulombs constant, k, is a proportionality constant that takes into account the properties of space. For more information on the derivation of k view the link below. However, all that is needed for physics 30 is to know that k=8.99x10^9 Nm2/C2.

http://www.16pi2.com/joomla/aetherphysics/coulombsconstant.html

Where:

Fe = Force (N)

q = Charge (C)

r = distance between the centers of the charged objects (m)

k = 8.99x10^9 Nm2/C2

References