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Device that uses electromagnetic induction to increase or decrease the voltage of an alternating current.
Transformer
(AC) Electric Current that reverses its direction of flow in a regular pattern.
Alternating Current
(DC) Electric current that flows in only one direction.
Direct Current
Large wheel that rotates when pushed by steam, wind, or water and provides mechanical energy to a generator.
Turbine
Device that uses electromagnetic induction to convert mechanical energy to electrical energy.
Generator
Process by which electric current is produced in a wire loop by a changing magnetic field.
Electromagnetic Induction
Device that converts electrical energy to mechanical energy by using the magnetic forces between an electromagnet and a permanent magnet to make a shaft rotate.
Electric Motor
A device that uses an electromagnet to measure electric current.
Galvanometer
Temporary magnet created when there is a current in a wire coil.
Electromagnet
A cylindrical coil of wire, used to produce a magnetic field when an electrical current passes through the wire.
Solenoid
The interaction between electric charges and magnets.
Electromagnetism
The attractive or repulsive force between electric charges and magnets.
Electromagnetic force
Group of atoms in a magnetic material in which the magnetic poles of the atoms are aligned in the same direction.
Magnetic Domain
Region on a magnet where the magnetic force exerted by a magnet is strongest; like poles repel and opposite poles attract.
Magnetic Pole
Region surrounding a magnet that exerts a force on other magnets and objects made of magnetic materials.
Magnetic Field
The properties and interactions of magnets.
Magnetism
Temporary magnet created when there is a current in a wire coil.
Electromagnet
Process by which electric current is produced in a wire loop by a changing magnetic field.
Electromagnetic Induction
Device that uses electromagnetic induction to increase or decrease the voltage of an alternating current.
Transformer
Device that uses electromagnetic induction to convert mechanical energy to electrical energy.
Generator
Device that converts electrical energy to mechanical energy by using the magnetic forces between an electromagnet and a permanent magnet to make a shaft rotate.
Electric Motor
Group of atoms in a magnetic material in which the magnetic poles of the atoms are aligned in the same direction.
Magnetic Domain
Region on a magnet where the magnetic force exerted by a magnet is strongest; like poles repel and opposite poles attract.
Magnetic Pole
Region surrounding a magnet that exerts a force on other magnets and objects made of magnetic materials.
Magnetic Field
A device that uses an electromagnet to measure electric current.
Galvanometer