Electrostatics is the branch of physics that studies electric charges at rest. It deals with the forces, fields, and potentials associated with static electric charges. Key concepts include:
- Coulomb’s Law: Describes the force between two point charges. It states that the force is proportional to the product of the charges and inversely proportional to the square of the distance between them.
- Electric Field: A field around a charged object where other charges experience a force. The field is defined as the force per unit charge and points away from positive charges and toward negative charges.
- Electric Potential: The potential energy per unit charge at a point in space due to electric forces. It provides a measure of the work done to move a charge from a reference point to that point.
- Gauss’s Law: Relates the electric flux through a closed surface to the charge enclosed by that surface. It’s useful for calculating electric fields in cases with symmetry.
- Capacitance: The ability of a system to store charge per unit voltage. A capacitor is a device designed to store and release electrical energy.
These concepts form the foundation for understanding how electric charges interact in various contexts.
