| antimagnetic |
unaffected by a magnetic field; resistant to magnetization. |
| armature |
a coil-wrapped iron core that rotates in a magnetic field to induce electrical current in a generator, or that produces motion in an electrical motor when current is passed through it. [1/4 definitions] |
| betatron |
in physics, an electron accelerator in which the speed of the electrons is increased to high energies, from a few million to a few hundred million electron volts, by the action of a rapidly changing magnetic field. |
| cyclotron |
a device for accelerating charged particles to very high energies in a spiral path using a fixed magnetic field and an alternating electric field. |
| degauss |
to neutralize (the magnetic field of a steel ship, chassis, or the like) by means of electric coils; demagnetize. |
| diamagnetic |
in physics, of or relating to a group of substances that in a magnetic field become magnetic in an opposite direction to that of iron. |
| dielectric heating |
the heating of electrically nonconducting materials by exposure to a high-frequency, alternating electromagnetic field, as in the production of plywood. |
| electron lens |
an electric or magnetic field, or a combination of the two, that is used to focus or deflect an electron beam. |
| field magnet |
a magnet used to produce and maintain a magnetic field in an electrical device such as a motor, generator, or particle accelerator. |
| flux |
in physics, the strength of a force such as a magnetic field. [1/9 definitions] |
| hodoscope |
a device used to follow the paths of charged particles in a magnetic field. |
| induction heating |
the induction of an electric current, through the application of an alternating magnetic field, to heat a conducting material. |
| isogonic |
connecting or designating points on the earth's surface with equal declination of the earth's magnetic field. [1/3 definitions] |
| magnetic |
pertaining to or functioning by means of the earth's magnetic field. [1/4 definitions] |
| magnetic bottle |
a magnetic field used to confine plasma during thermonuclear reactions. |
| magnetic compass |
an instrument that shows direction relative to the earth's magnetic field, usu. by means of a magnetic needle mounted on a pivot. |
| magnetic flux |
the total number of lines of induction moving through a specific area in a magnetic field. |
| magnetic moment |
the ratio that expresses the strength of a particular source of magnetic field. [1/2 definitions] |
| magnetic pickup |
a phonograph pickup in which vibrations of the stylus are received by a coil in a magnetic field and thus converted to electrical current. |
| magnetic resonance imaging |
a non-invasive medical imaging technology using radio waves and powerful magnetic fields to make the interior of the human body visible in three dimensions and in real time.(abbrev.: MRI) |
| magnetic storm |
a temporary widespread disturbance of the earth's magnetic field, caused by unusual solar activity. |