Linked from

The 16 pages that link to Ampère's circuital law, each with the reason it gives.

• Magnetic fieldRelated: It links circulating magnetic fields to the currents that produce them.

• James Clerk MaxwellRelated: Its original form lacked the changing-electric-field term Maxwell supplied.

• Magnetic dipoleRelated: It links the currents inside a source to the surrounding magnetic field.

• Stokes' theoremRelated: Stokes' theorem converts its circulation form into a surface integral of curl.

• Hans Christian ØrstedRelated: André-Marie Ampère developed mathematical laws for the magnetic effects Ørsted had observed.

• MagnetostaticsRelated: Symmetry lets it determine fields around steady currents directly.

• Current transformerRelated: It explains how primary current creates the magnetic field that drives the transformer's secondary current.

• ElectrodynamicsRelated: Its original form captured steady currents before Maxwell's extension.

• Toroid (electromagnetism)Related: A circular Amperian path inside an ideal toroid makes its field straightforward to calculate.