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Electromagnetism

Holt Vocabulary Chapter 18

TermDefinition
Magnetic force Force between two magnets.
Poles Parts of a magnet where the magnetic effects are strongest.
Galvanometer Device used to measure current.
electric motor Device that changes electrical energy into mechanical energy.
electromagnet Produced by a coil of current-carrying wire wrapped around a soft iron core.
Oersted Scientist who discovered the relationship between electricity and magnetism.
induction During electromagnetic ______, a changing magnetic field produces an electric current.
maglev Abbreviation for magnetic levitation.
domain A tiny region in a magnet where all atoms are grouped together and their poles are aligned.
magnetic field Region around a magnet in which magnetic force can act.
generator Device that uses electromagnetic induction to convert mechanical energy into electrical energy.
solenoid Coil of wire that, when carrying an electric current, produces a magnetic field.
transformer Device that increases or decreases the voltage of an alternating current.
magnet Material that attracts iron or materials containing iron.
ferromagnet magnet made with iron, nickel, or cobalt.
Faraday British scientist who discovered that a changing magnetic field can produce an electric current.
Created by: norfin78