# Coulomb's Law problem: Force of attraction between the two singly charged ions

• Special One
In summary, Coulomb's Law is a fundamental law in physics that describes the force of attraction or repulsion between two charged particles. This force is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. The formula for calculating this force is F = (k * q1 * q2) / r^2, where F is the force of attraction, k is the Coulomb's constant, q1 and q2 are the charges of the ions, and r is the distance between them. The unit of force in Coulomb's Law is Newton (N). This law can be applied to any type of charged particles, as long as they have a definite charge and are at a certain
Special One
Homework Statement
Force
Relevant Equations
Coulomb's Law
In a salt crystal, the distance between adjacent sodium and chloride ions is 2.82×10^−10m. What is the force of attraction between the two singly charged ions?

Last edited by a moderator:
Do you want us to check your math ?

BvU said:
Do you want us to check your math ?
Lol, of course I just want you to check if I made any mistakes. I have found different answers on the internet of the same problem.

So, you can do the checking yourself. You have all you need to do it. The internet is notoriously unreliable. Note that PF is also on the internet

berkeman and Orodruin

## 1. What is Coulomb's Law?

Coulomb's Law is a fundamental law of electrostatics that describes the force of attraction or repulsion between two electrically charged particles.

## 2. How is Coulomb's Law expressed mathematically?

Coulomb's Law is expressed as F = k(q1q2)/r^2, where F is the force of attraction or repulsion, k is the Coulomb constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the charges.

## 3. What is the significance of the distance between the two charged particles in Coulomb's Law?

The distance between the two charged particles has a significant impact on the force of attraction or repulsion between them. As the distance increases, the force decreases, and vice versa.

## 4. How does the magnitude of the charges affect the force of attraction or repulsion in Coulomb's Law?

The magnitude of the charges has a direct relationship with the force of attraction or repulsion. As the magnitude of the charges increases, the force also increases, and vice versa.

## 5. Can Coulomb's Law be applied to multiple charged particles?

Yes, Coulomb's Law can be applied to multiple charged particles by calculating the individual forces between each pair of particles and then adding them together vectorially to determine the total force.

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