Polarity
[pə(ʊ)'lærɪtɪ] or [pə'lærəti]
Definition
(noun.) having an indicated pole (as the distinction between positive and negative electric charges); 'he got the polarity of the battery reversed'; 'charges of opposite sign'.
Edited by Elise--From WordNet
Definition
(n.) That quality or condition of a body in virtue of which it exhibits opposite, or contrasted, properties or powers, in opposite, or contrasted, parts or directions; or a condition giving rise to a contrast of properties corresponding to a contrast of positions, as, for example, attraction and repulsion in the opposite parts of a magnet, the dissimilar phenomena corresponding to the different sides of a polarized ray of light, etc.
(n.) A property of the conic sections by virtue of which a given point determines a corresponding right line and a given right line determines a corresponding point. See Polar, n.
Inputed by Antonia
Examples
- It will be seen, therefore, that this method of duplexing is practiced, not by varying the strength or polarity, but by sending TWO KINDS OF CURRENT over the wire. Frank Lewis Dyer. Edison, His Life and Inventions.
- If the direction is reversed, the polarity will also be reversed. Frank Lewis Dyer. Edison, His Life and Inventions.
- If the earth is at present magnetical, in virtue of the masses of iron ore contained in it, might not some ages pass before it had magnetic polarity? Benjamin Franklin. Memoirs of Benjamin Franklin.
- If the direction of flow of current be reversed, by reversing the battery, the electromagnetic polarity also reverses and the end of the permanent magnet swings over to the other side. Frank Lewis Dyer. Edison, His Life and Inventions.
- An essential part of this relay consists of a swinging PERMANENT magnet, C, whose polarity remains fixed, that end between the terminals of the electromagnet being a north pole. Frank Lewis Dyer. Edison, His Life and Inventions.
- It is immaterial which way the wire is wound around the bar, the determining factor of polarity being the DIRECTION of the current. Frank Lewis Dyer. Edison, His Life and Inventions.
Checked by Evita