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  2. Electromagnetic induction - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_induction

    The magnetic field lines are indicated, with their direction shown by arrows. The magnetic flux corresponds to the 'density of field lines'. The magnetic flux is thus densest in the middle of the solenoid, and weakest outside of it. Faraday's law of induction makes use of the magnetic flux Φ B through a region of space enclosed by a wire loop.

  3. Superconducting magnetic energy storage - Wikipedia

    en.wikipedia.org/wiki/Superconducting_magnetic...

    Once the superconducting coil is energized, the current will not decay and the magnetic energy can be stored indefinitely. The stored energy can be released back to the network by discharging the coil. The power conditioning system uses an inverter/rectifier to transform alternating current (AC) power to direct current or convert DC back to AC ...

  4. Superconducting magnet - Wikipedia

    en.wikipedia.org/wiki/Superconducting_magnet

    The magnet is inside the doughnut-shaped housing and can create a 3-tesla field inside the central hole. Superconducting magnets have a number of advantages over resistive electromagnets. They can generate much stronger magnetic fields than ferromagnetic-core electromagnets, which are limited to fields of around 2 T. The field is generally more ...

  5. Introduction to electromagnetism - Wikipedia

    en.wikipedia.org/wiki/Introduction_to...

    [15] [16] Maxwell's extension to the law states that a time-varying electric field can also generate a magnetic field. [12] Similarly, Faraday's law of induction states that a magnetic field can produce an electric current. For example, a magnet pushed in and out of a coil of wires can produce an electric current in the coils which is ...

  6. A Radical New Magnet Without Rare-Earth Metals Is About to ...

    www.aol.com/radical-magnet-without-rare-earth...

    A U.K.-based company announced last week that they’d successfully developed, in just three months, a magnet that doesn’t use rare earth metals at all using AI—according to the company, that ...

  7. Faraday's law of induction - Wikipedia

    en.wikipedia.org/wiki/Faraday's_law_of_induction

    The Maxwell–Faraday equation (listed as one of Maxwell's equations) describes the fact that a spatially varying (and also possibly time-varying, depending on how a magnetic field varies in time) electric field always accompanies a time-varying magnetic field, while Faraday's law states that emf (electromagnetic work done on a unit charge when ...

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