Encyclopedia > Ampere's law

Article Content

Ampere's law

In physics, Ampere's law is the magnetic equivalent of Gauss's law. It was discovered by Andre Marie Ampere It describes the relation between a circulating magnetic field in a closed loop and the generated electric current:

<math>\oint_S \mathbf{B} \cdot d\mathbf{s} = \mu_0 I </math>

where

B is the magnetic flux

s is an infinitesimal element of the closed loop S

I is the current encircled by the curve S

μ₀ is the permeability of free space

<math>\oint_S</math> is the path integral along the loop S

This law, as the others laws of electromagnetism was later incorperated into Maxwell's equations, unifying all of electromagnetism.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Canadian Charter of Rights and Freedoms

... the right to be presumed innocent until proven guilty, the right to retain a lawyer and to be informed of that right, and the right to an interpreter in a court ...