Studied by 1 person
magnet
any material or object that can produce a magnetic field
magnetism
the properties of magnets and magnetic fields and phenomena that they produce
magnetic pole
one of the two regions of concentrated magnetic fields in a magnet; traditionally called the north and south poles
magnetic field
the region surrounding a magnet or current-containing wire that can apply a magnetic force on magnetic materials
magnetic South pole
the magnetic pole in the Southern Hemisphere
magnetic North pole
the magnetic pole in the Northern Hemisphere
magnetic declination
the angular difference between the directions to the geographic and magnetic North Poles
magnetic domain
a group of atoms whose individual magnetic fields are aligned
ferromagnetism
the physical property in which a materials magnetic domains spontaneously align to an external magnetic field
right-hand rule
a mnemonic device used to remember the direction of the magnetic field induced by an electric current moving through a wire
solenoid
a coil of current-carrying wire used as a magnet
electromagnet
the combination of a strong magnet and an electrified wire coil
electromagnet induction
the principle that voltage is produced in a conductor whenever the conductor whenever the conductor and a magnetic field are changed relative to each other
generator
a device that converts mechanical energy into electrical energy by electromagnetic induction
rotor
the rotating portion of a generator
stator
the stationary portion of a generator
prime mover
the agent that provides the mechanical energy to turn the rotor of a generator
commutator
a structure in DC motors and generators that converts currents between DC and AC
transformer
a device that uses electromagnetic induction to increase or decrease the voltage of an AC current
step-down transformer
a transformer that is designed to decrease an output voltage
step-up transformer
a transformer that is designed to increase an output voltage
