Calculating Electrostatic Force Between Pennies with Slight Charge Differences

In summary, the conversation discusses the concept of electric charge and the forces between two objects with different charges. The question posed is, with a small difference in the magnitude of the charges on a proton and an electron, what would be the repulsive force between two copper pennies placed 1.0 m apart? The relevant equation is provided and the person seeking help is advised to estimate the number of protons and electrons in a penny, possibly by consulting the periodic table.
  • #1
Emily_20
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0

Homework Statement


We know that the magnitudes of the negative charge on the electron and the positive charge on the proton are equal. Suppose, however, that these magnitudes differed from each other by as little as 0.0001%. With what force would two copper pennies, placed 1.0 m apart, repel each other? Estimate any quantities you need that you do not know.

Homework Equations


F=kQ1Q2/r^2

The Attempt at a Solution


I do not know from where to start. I drew a picture of the charges. I do not know how to find the charge from 0.0001% condition. Can you help me please?
 
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  • #2
You could start by estimating the numbers of protons and electrons in a penny. You may need to consult the periodic table...
 

Related to Calculating Electrostatic Force Between Pennies with Slight Charge Differences

1. What is electrostatic force?

Electrostatic force is the force of attraction or repulsion between electrically charged particles. It is caused by the interaction between the electric fields of these particles.

2. How is the electrostatic force calculated?

The electrostatic force can be calculated using Coulomb's Law, which states that the force between two charged particles is directly proportional to the magnitude of the charges and inversely proportional to the distance between them.

3. What factors affect the strength of the electrostatic force?

The strength of the electrostatic force is affected by the magnitude of the charges, the distance between the charges, and the medium between the charges. The force increases with increasing charge and decreases with increasing distance. The type of medium between the charges also affects the strength of the force.

4. How does the electrostatic force differ from other types of forces?

The electrostatic force is a non-contact force, meaning it can act on objects without physically touching them. It is also a long-range force, as it can act over large distances. It is also a conservative force, meaning it can do work and transfer energy.

5. What are some real-world applications of the electrostatic force?

The electrostatic force plays a crucial role in many technologies, such as generators, motors, and electronic devices. It is also used in industrial processes, such as painting and powder coating, where charged particles are used to attract and adhere to surfaces. In nature, the electrostatic force is responsible for holding atoms together and creating chemical bonds.

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