The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 357
itarea gives the strength of the shell; it is equal to the magneticquantity per unit of area, multiplied by the thickness of the shell.If its strength is uniform throughout a magnetic shell is calledsimple; if its strength varies it is termed complex. Emtage thus defines it: A magnetic shell is an… … Fig. 224. Magnetic Separator. STANDARD ELECTRICAL DICTIONARY. 353 Magnetic Shield. In general a magnetic screen, q. v. Some-times a strong local field is made to act as a shield, by its predomi-nance overcoming any local or terrestrial field to which the needleto be protected may be exposed.…
Electricity
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