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2. Oersted's law - Wikipedia

   en.wikipedia.org/wiki/Oersted's_law

   The magnetic field (marked B, indicated by red field lines) around wire carrying an electric current (marked I) Compass and wire apparatus showing Ørsted's experiment (video [1]) In electromagnetism, Ørsted's law, also spelled Oersted's law, is the physical law stating that an electric current induces a magnetic field. [2]

3. Proximity effect (electromagnetism) - Wikipedia

   en.wikipedia.org/wiki/Proximity_effect...

   In conductors carrying AC current in opposite directions, it causes the current in the conductor to concentrate on the side adjacent to the nearby conductor. Proximity effect is caused by eddy currents induced within a conductor by the time-varying magnetic field of the other conductor, by electromagnetic induction. For example, in a coil of ...

4. Fleming's left-hand rule for motors - Wikipedia

   en.wikipedia.org/wiki/Fleming's_left-hand_rule...

   The thumb shows the direction of motion and the index finger shows the field lines and the middle finger shows the direction of induced current. If an external magnetic field is applied horizontally, so that it crosses the flow of electrons (in the wire conductor, or in the electron beam), the two magnetic fields will interact.

5. Lorentz force - Wikipedia

   en.wikipedia.org/wiki/Lorentz_force

   The magnetic force component of the Lorentz force manifests itself as the force that acts on a current-carrying wire in a magnetic field. In that context, it is also called the Laplace force . The Lorentz force is a force exerted by the electromagnetic field on the charged particle, that is, it is the rate at which linear momentum is ...

6. Magnetic field - Wikipedia

   en.wikipedia.org/wiki/Magnetic_field

   The force on a current carrying wire is similar to that of a moving charge as expected since a current carrying wire is a collection of moving charges. A current-carrying wire feels a force in the presence of a magnetic field. The Lorentz force on a macroscopic current is often referred to as the Laplace force.

7. Hall effect - Wikipedia

   en.wikipedia.org/wiki/Hall_effect

   When a current-carrying semiconductor is kept in a magnetic field, the charge carriers of the semiconductor experience a force in a direction perpendicular to both the magnetic field and the current. At equilibrium, a voltage appears at the semiconductor edges.

8. Ampère's circuital law - Wikipedia

   en.wikipedia.org/wiki/Ampère's_circuital_law

   [6] [7] He investigated and discovered the rules which govern the field around a straight current-carrying wire: [8] The magnetic field lines encircle the current-carrying wire. The magnetic field lines lie in a plane perpendicular to the wire. If the direction of the current is reversed, the direction of the magnetic field reverses.

9. Meissner effect - Wikipedia

   en.wikipedia.org/wiki/Meissner_effect

   Magnetic field lines, represented as arrows, are excluded from a superconductor when it is below its critical temperature. In condensed-matter physics , the Meissner effect (or Meißner–Ochsenfeld effect ) is the expulsion of a magnetic field from a superconductor during its transition to the superconducting state when it is cooled below the ...