Magnetic Fields from Currents

Magnetic fields on a macroscopic scale can be related to electric currents. That relationship is made specific in the Biot-Savart Law and can be visualized and calculated with Ampere's Law if the symmetry of the system is high enough to make the use of Ampere's Law practical.

Magnetic field of a toroid
Index

Magnetic field concepts

Magnetic field geometries
 
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