PRINCIPLES OF ELECTRICITY AND MAGNETISM: UNITS


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PRINCIPLES OF ELECTRICITY AND MAGNETISM: UNITS
PRINCIPLES OF ELECTRICITY AND MAGNETISM: UNITS21. Magnets and magnetism. Any body which has the ability to attract iron or steel is called a magnet. The attractive ability of such a body is called magnetism. Certain specimens of iron ore sometimes possess the property when they are taken from the earth. Such natural specimens will attract and hold iron filings and are called natural magnets or lodestones. The two ends of a magnetic specimen that have the greatest attraction for the iron filings are called the poles of the magnet. If a natural magnet is suspended by a stri…
Citation
Terrell Croft; Frederic P. Hartwell; Wilford I. Summers: American Electricians' Handbook, Sixteenth Edition. PRINCIPLES OF ELECTRICITY AND MAGNETISM: UNITS, Chapter (McGraw-Hill Professional, 2013), AccessEngineering Export