electromagnetic induction

Magnetism creating current

Electromagnetic induction is the production of electric current by a changing magnetic field.

When a magnet moves near a conductor, or when a conductor moves through a magnetic field, voltage is generated.

This principle underlies electric generators, transformers, and induction cooktops.

Michael Faraday discovered the phenomenon in 1831.

current

eddy currents

Induced loops in conductors

galvanometer · ammeter · displacement current

generators

dynamo

Motion-to-electricity converter

rotor · stator · commutator · brushless · power generation · hydroelectric generator · wind turbine · magneto · regenerative braking · crank

pioneers

Faraday

Electromagnetism pioneer's surname

  • HenryGermanic masculine name
  • TeslaEV manufacturer and surname
  • MaxwellScottish-origin given name

Michael Faraday · Nikola Tesla · Faraday cage

coils

solenoid

Current-carrying wire helix

  • windingCurving repeatedly, sinuous
  • toroidDoughnut-shaped geometric surface
  • bobbinSmall cylindrical thread holder

choke · reactance · wire gauge

transformers

step-up

An increase or advancement

bushing · high voltage · low voltage · power transformer

magnetism

ferromagnetism

Strong atomic magnetic alignment

polarity

wireless

charging pad

Wireless device power surface

electric toothbrush · wireless earbuds

Categories
Opposites
mechanism of charge/current generation

electromagnetic inductionstatic electricity

Accumulated surface charge

electrostatics · triboelectric effect · electrostatic charge · piezoelectricity · direct current

energy transfer method

electromagnetic inductionphotovoltaic effect

Light producing electrical current

Family

magnet, electricity, magnetic, electrical, magnetism, induction, magnets, electron, magnetize

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Used worldwide · Timeless · Rated G