The Coulomb's law describes the force that acts between two point charges. The force is always attractive and is directly proportional to the magnitude of the c...
The Coulomb's law describes the force that acts between two point charges. The force is always attractive and is directly proportional to the magnitude of the charges and inversely proportional to the square of the distance between them.
where:
F is the force in newtons
k is the Coulomb constant (9 x 10^9 N m^2/C^2)
q_1 and q_2 are the magnitudes of the charges in coulombs
r is the distance between the charges in meters
The direction of the force is always from the positive charge to the negative charge.
The Coulomb's law can be used to predict the force between two point charges, regardless of their relative position. For example, if two point charges of equal magnitude are separated by a certain distance, the force between them will be equal to the force between two point charges of the same magnitude separated by twice the distance.
The Coulomb's law is a fundamental law in electrostatics, which is the study of electric charge and the forces that act between them. Coulomb's law is used to explain a wide variety of phenomena, such as the behavior of charged objects in electric fields and the design of capacitors