Coulomb's Law and Electrostatic Force
This section delves into the relationship between electric charges and the forces they exert on each other, introducing Coulomb's law.
Coulomb's Law
Coulomb's law states that the magnitude of the electrostatic force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
Definition: Prąd elektryczny definicja Fizyka ElectriccurrentdefinitioninPhysics - The flow of electric charge through a conductor.
Problem 4: Calculating Electrostatic Force
This problem demonstrates how to calculate the electrostatic force between two charges q₁=-2·10⁻⁹C and q₂=7·10⁻⁹C at a distance of 5m.
Highlight: The solution shows step-by-step application of Coulomb's law to determine the electrostatic force.
Problem 5: Interaction of Small Charged Bodies
This problem involves two small bodies with charges q₁=+1nC and q₂=-2mC at a distance of 20cm, asking to determine if they attract and the magnitude of their interaction force.
Example: Elektryzowanie przez indukcję przykłady Examplesofelectrificationbyinduction include a charged rod attracting small pieces of paper without touching them.
These problems illustrate practical applications of electrostatic principles and provide valuable practice in solving electrostatics-related calculations.