Magnetic circuit to Magnetization

Magnetic circuit to Magnetic needk

work on its face by magnetic at­traction. (Metalwk.) An important adjunct to surface-grinding ma­chines, especially in holding thin piates during grinding operations. They can be used only with direct current.

Magnetic circuit. (Elec.) The path of magnetic lines of force in a mag­netic substance or in. magnetic or electric apparatus. A circuit may also include a gap.

Magnetic circuit breaker. (Elec.) An electromagnetic device for opening a circuit.

Magnetic coil. (Elec.) The winding of an electromagnet. A coil of wire wound in .one direction, produc­ing a dense magnetic field capable of attracting iron or steel when car­rying a current of electricity.

Magnetic cutout. (Elec.) A device for breaking an electrical circuit by means of an electromagnet, instead of by fusing a part of the circuit.

Magnetic deflection. (Tel.) Move­ment of electron beam controlled by magnetic fields.
Magnetic field. (Elec.) The space in the vicinity of a magnet through which magnetic forCes act.

Magnetic flux. (Elec.) Magnetic lines of force set up by an electromag­net, permanenf magnet, or sole­noid.

Magnetic force. (Elec,) The force by which attraction and repulsion are exerted by the poles of a magnet.

Magnetic fuel pump. (Auto.) An electrically operated mechanical pump for regulating the fuel supply without the aid, of a vacuum system.

Magnetic hoist. (Elec.) A hoisting device with does its lifting by means of an electromagnet.

Magnetic induction. (Elec.) The number of magnetic lines or the magnetic flux per unit of cross-. sectional area ,perpendicular to the direction of the flux.

Magnetic needle. (Elec.) A small slender steel magnet so supported that it can naturally assume a north and south position with regard to the earth's magnetic poles.

Magnetic pereability to Magnetization

Magnetic permeability. (Elec.) A measure of the ease with which magnetism passes through any sub­stance.

Magnetic potential. (Elec.) Is meas­ured by the work involved in mov­ ing a unit magnetic pole from the boundary of the field to the point at which the potential is desired..

Magnetic screen or shield. (Elec.) A hollow iron casing, the center of which is free from magnetic lines of force.

Magnetic storm. A temporary dIstur­bance of the earth's magnetic field, induced by radiation and streams of charged particles from the sun.

Magnetic switch. (Elec.) A switch operated or controlled by an elec­tromagnet.

Magnetic tape. A substrate coated with a film. of magnetic ~a1 and other components, slit to appro­priate widths and lengths and used as a memory device for audio, video, instrumentation, computer, and other applications.  

Magnetic whirl. (Elec.) Around every wire passing electric current a circular magnetic field is built up in the form of whirls or spirals. This does not apply to noninductive winding.

Magnetism. (Elec.) (I) That prop­erty of iron, steel, and some other substances, by virtue of which, ac­cording to fixed laws, they exert forces of attraction and repulsion. (2) The science that treats of the conditions and laws of magnetic force.

Magnetite. (Min.) Magnetic iron ore (Fep4)'

Magnetization. (Elec.) The act of oc­quiringmxxnmunicatingm ag net ism.