Electrostatic interaction

In summary, electrostatic interaction is the force between two charged particles due to their electric fields. It is affected by factors such as distance, charge magnitude, and the medium's dielectric constant. It is also closely related to the concept of electric potential, as the strength of the interaction is proportional to the product of the charges and inversely proportional to the distance between them. It can be both attractive and repulsive, and it is essential in many aspects of our daily lives, including holding atoms and molecules together, creating static electricity, and playing a crucial role in biological systems.
  • #1
mather
146
0
hello!

which equation descripts the electrostatic interaction between two non-point (ie. that have dimensions) charged particles?

thanks!
 
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  • #2
That would be different for every shape! Start with the formula for point charges and integrate over all the infinitesimal charges in the shape. Spheres work out nicely; other shapes do not.
 
  • #3
Yeah, i want for spheres only, forgot to mention
 
  • #4
For spheres, just use the point charge formulas - as if the entire charge was located at the center point. Make a note that you need to work that out for yourself once you take 3D calculus.
 
  • #5


Hello! The equation that describes the electrostatic interaction between two non-point charged particles is the Coulomb's Law equation, which is F = (k*q1*q2)/r^2, where F is the force of interaction, k is the Coulomb's constant, q1 and q2 are the charges of the particles, and r is the distance between them. This equation takes into account the dimensions of the charged particles and can be used to calculate the force of attraction or repulsion between them. I hope this helps!
 

1. What is electrostatic interaction?

Electrostatic interaction is the force between two charged particles due to their electric fields. It is also known as Coulombic interaction and is one of the fundamental forces of nature.

2. What factors affect the strength of electrostatic interaction?

The strength of electrostatic interaction is affected by the distance between the charged particles, the magnitude of their charges, and the dielectric constant of the medium between them. The force increases as the charges increase and decreases as the distance between them increases. The dielectric constant of the medium determines the extent to which the electric field is affected by the medium.

3. How is electrostatic interaction related to the concept of electric potential?

Electric potential is the amount of work required to move a unit of charge from one point to another in an electric field. Electrostatic interaction is the force between two charged particles due to their electric fields. The electric potential is directly related to the strength of the electrostatic interaction, as the force between two charged particles is proportional to the product of their charges and inversely proportional to the distance between them.

4. Can electrostatic interaction be attractive or repulsive?

Electrostatic interaction can be both attractive and repulsive, depending on the charges of the particles involved. Like charges (positive-positive or negative-negative) will repel each other, while opposite charges (positive-negative) will attract each other.

5. How is electrostatic interaction important in our daily lives?

Electrostatic interaction is essential in many aspects of our daily lives. It is the force that holds atoms and molecules together, giving us the physical properties of matter. It is also responsible for the behavior of static electricity, which is used in many technologies, such as printers, photocopiers, and air filters. Additionally, electrostatic interactions play a crucial role in biological systems, such as cell membrane function and nerve impulses.

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