Sähköstaatiikka

Sähköstaatiikka is the study of stationary electric charges and the forces and electric fields associated with them. It is a branch of physics that deals with electric phenomena that are static, meaning they do not involve movement of charge. Key concepts in sähköstaatiikka include electric charge, electric field, electric potential, and capacitance.

Electric charge is a fundamental property of matter that causes it to experience a force when placed in an electric or magnetic field. Charges can be positive or negative, and like charges repel each other while opposite charges attract. The unit of electric charge is the Coulomb (C).

An electric field is a region of space around an electric charge where another charged object would experience a force. The electric field is represented by field lines, which indicate the direction and strength of the force. Electric potential, also known as voltage, is the amount of electric potential energy per unit charge at a point in an electric field. Capacitance is the ability of an object to store electric charge.

Sähköstaatiikka explains phenomena such as the attraction of a charged object to a neutral object, the operation of electrostatic precipitators used to remove particles from the air, and the discharge of static electricity, often observed as a spark. It forms the foundation for understanding more complex electromagnetic phenomena.