Reading and Writing

Date: 2015-10-07; view: 503.

Exercise 93. Read, translate the text and find the terms which correspond with these descriptions.

1.________________ - the property that certain substances have of being weakly repelled by both poles of a magnet.

2.________________ - the ratio of electric or magnetic polarization in a material to the strength of the field producing that polarization.

3.________________ - a region in a ferromagnetic material within which the atoms are magnetically aligned: alignment of these regions results in the material being magnetized.

4.________________ - the temperature at which the magnetic properties of a substance change from ferromagnetic to paramagnetic, usually lower than the substance's melting point.

5.________________ - the property of a magnet that interacts with an applied field to give a mechanical moment.

6.________________ - material, as aluminum or platinum, having a magnetic permeability slightly greater than unity and varying to only a small extent with the magnetizing force.

7.________________ - material, as iron, nickel, or cobalt, having a high magnetic permeability which varies with the magnetizing force.

8.________________ - the principle that the magnetic susceptibility of a paramagnetic substance is inversely proportional to its thermodynamic temperature.

9.________________ - the expulsion of magnetic flux when a material becomes superconducting in a magnetic field.

10.________________ - any material that exhibits superconductivity.