Basic Electricity and Electrostatics Animations

Electricity begins with electric charge, a fundamental property of matter that comes in positive and negative forms. Animations of basic electricity make the invisible interactions of charges visible, showing how like charges repel and unlike charges attract, and how a region of space around a charge exerts force on others placed within it. This region is described by the electric field, whose direction and strength can be drawn as field lines that point away from positive charges and toward negative ones.

The force between charges follows Coulomb's law, which states that the attraction or repulsion grows with the size of the charges and weakens with the square of the distance between them. Animations let a learner move charges and watch the field and forces change, building intuition for an inverse-square relationship that would otherwise remain an abstract formula. The same field idea extends to collections of charges and to the potential, measured in volts, that drives current in circuits.

Electricity and magnetism are deeply linked, a connection captured in the work of Michael Faraday. His law of induction states that a changing magnetic field through a coil induces a voltage, and animations illustrate how moving a magnet near a loop of wire produces current. This principle bridges static electricity and practical power generation, since the generators that supply the grid all rely on the induced voltage that Faraday first described.

Frequently asked questions

What is an electric field?

It is the region around a charge in which other charges feel a force; its strength and direction are often shown using field lines.

What does Faraday's law of induction say?

A changing magnetic field through a coil induces a voltage across it, the principle behind electrical generators.

How do electric charges interact?

Like charges repel and unlike charges attract, with a force that increases with charge size and decreases with the square of the distance between them.