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Magnet
Science
| Question | Answer |
|---|---|
| Alternating Current | An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies. |
| Aurora | The northern lights (aurora borealis) or southern lights (aurora australis), a natural electrical phenomenon characterized by the... The dawn. |
| direct current | An electric current flowing in one direction only. |
| Electromagnet | A soft metal core made into a magnet by the passage of electric current through a coil surrounding it. |
| generator | A magnetic domain describes a region within a magnetic material which has uniform magnetization. This means that the individual magnetic... |
| Magnetic Domain | A magnetic domain describes a region within a magnetic material which has uniform magnetization. This means that the individual magnetic... |
| Magnetic Field | A region around a magnetic material or a moving electric charge within which the force of magnetism acts. |
| Magnetosphere | The region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field. |
| motor | A machine, esp. one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device... |
| Transformer | An apparatus for reducing or increasing the voltage of an alternating current. A person or thing that transforms something. |
| superconductor | A substance capable of becoming superconducting at sufficiently low temperatures. A substance in the superconducting state. |
| Compass | An instrument containing a magnetized pointer that shows the direction of magnetic north and bearings from it. An instrument for drawing circles and arcs and measuring distances between points, consisting of two arms linked by a movable joint, on |
| poles | A long, slender, rounded piece of wood or metal, typically used with one end placed in the ground as a support for something: "a tent pole". Either of the two locations (North Pole or South Pole) on the surface of the earth (or of a celestial obj |
| voltage | An electromotive force or potential difference expressed in volts. |