Electrostatics includes several divisions: electrical properties of matter, capacitance, electric flux, electric potential, electric field, electric force, charge distributions, and electric charge.


Electrical properties of matter


Capacitance is a measure of the energy involved in maintaining the separation of charges, and is given as coulombs per volt.

Electric flux

Electric flux is an abstract quantity that is somwhat difficult to visualize. It has roots in analogies between electricity and mechanics, and is most commonly explained in terms of lines of force. It is defined as the product of an electrical field and an area perpendicular to it. This quantity is used principally in electromagnetic calculations.

Electric field

It is often convenient to suppose that the presence of an electric charge or distribution of charges influences the space around it and sets up an electric field. This field is considered to have a magnitude and a direction at each point in space, and can be considered to determine the net or total electric force on a charged body.

Electric potential

The presence of an electric field and the accompanying force means that motion of charged bodies within this field involves work and changes in energy. The possible changes in energy are described by the electric potential.

Electric force

Various cases and formulations of electrical force, based on the elementary force between charges and between charged bodies of various distributions are important in electrostatics

Electric charge distributions

Various cases of the geometric distribution of charges along a line, on a plane, or in three-dimensional space are important in electrostatics.

Electric charge

Electrical charge is a fundamental property of matter. Basic principles include the elementary unit, positive and negative charges, electrical neutrality, and conservation of charge.

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Created 13 Mar 2017 Last updated 23 Sep 2017