Solenoid-a long, helically wound coil of insulated wire
Magnetic domain-a group of atoms whose magnetic fields are aligned in the same direction
Magnetic field-A region in which a magnetic force can be detected
Electromagnetic induction-the process of creating a current or voltage in a circuit loop by moving a conductor through a magnetic field
Generator-a machine that converts mechanical energy into electrical energy
Alternating current-a current that changes direction at regular intervals
Direct current-a current that flows in the same direction
Transformer-A device that increases or decreases the voltage or alternating current
Magnet-A material or object that produces a magnetic field
Right hand rule-a useful way to visualize the direction of a magnetic force
Electromagnet-A temporary magnet whose magnetic field is produced by an electric current
Electric motor-a machine that converts electrical energy to mechanical energy
Compass-an instrument for determining direction relative to the Earth’s magnetic poles
(source)