Coulomb's Law states that the force between two electric charges is inversely proportional to the square of the distance between them. This means that if th...
Coulomb's Law states that the force between two electric charges is inversely proportional to the square of the distance between them. This means that if the distance between two charges is doubled, the force between them will be reduced to one-fourth of its original value.
Formula:
where:
F is the force in newtons
k is the Coulomb constant (9 × 10^9 N m^2/C^2)
q_1 and q_2 are the charges in coulombs
r is the distance in meters
Example:
Suppose we have two charges, q_1 = 2 coulombs and q_2 = 3 coulombs, separated by a distance of 5 meters. The force between them would be:
This means that the force between the two charges is 36 newtons.
Applications of Coulomb's Law:
Coulomb's Law is used in various applications, including:
Determining the force between charged objects
Calculating the potential difference between two charges
Understanding the behavior of electric fields
Designing capacitors and other electrical devices
By understanding Coulomb's Law, we can gain insights into the fascinating world of electric charges and how they interact with each other