 | 1884 - Страниц: 594
...found that the force with which two dissimilar poles attract, or similar poles repel each other, is directly proportional to the product of their strengths, and inversely proportional to the square of the distance between the poles. The magnets are here supposed to be sufficiently long to put the other... | |
 | John Duncan Quackenbos - 1891 - Страниц: 572
...magnetism is as follows : The force exerted between two magnetic poles, whether attraction or repulsion, is directly proportional to the product of their strengths, and inversely proportional to the square of the distance between, them. The experimental proof of this law is measurably difficult, because it... | |
 | Isaac Sharpless, George Morris Philips - 1892 - Страниц: 384
...Magnetic Force. — Dissimilar magnetic poles attract each other, and similar magnetic poles repel each other with a force directly proportional to the product...strengths, and inversely proportional to the square of the distance between them. 423. Directive Tendency of the Magnet. — Experiment 154. — Make a stirrup... | |
 | William Edward Steavenson - 1892 - Страниц: 508
...considerations apply here as in the case of quantities of electricity. The force between two magnetic poles is proportional to the product of their strengths, and inversely proportional to the square of their distances, hence it may be represented by an expression. mm' _. Where F stands for the force... | |
 | Henry Smith Carhart - 1896 - Страниц: 468
...magnetic force as affected by the distance between the poles : The force between two magnetic poles is proportional to the product of their strengths and inversely proportional to the square of the distance between them. This distance must be so great that the poles may be regarded as mere points.... | |
 | Henry Smith Carhart - 1904 - Страниц: 614
...magnetic force as affected by the distance between the poles : The force between two magnetic poles is proportional to the product of their strengths and inversely proportional to the square of the distance between them. This distance must be so great that the poles may be regarded as mere points.... | |
 | Charles Elijah Linebarger - 1910 - Страниц: 488
...strength equal to m dynes. Coulomb, in 1785, demonstrated that the force acting between two poles is directly proportional to the product of their strengths and inversely proportional to the square of the distance between them. The force f acting between a pole of strength m and a pole of strength m'... | |
 | Nehemiah Hawkins - 1910 - Страниц: 570
...to the source of light, Law of Inverse Squares. — The force exerted between two magnetic poles is proportional to the product of their strengths, and inversely proportional to the square of the distance between them. Also known as Coulomb's law. Law of Joule. — A law relating to the heat... | |
 | Henry Smith Carhart - 1910 - Страниц: 650
...magnet poles with the following quantitative result : The force between two magnetic poles in jodr is proportional to the product of their strengths and inversely proportional to the square of the distance between them. The magnets must be relatively long and the distance so great that the poles... | |
 | William Francis Magie - 1911 - Страниц: 588
...defined, the law of magnetic force may be enlarged into the statement that the force between two poles is proportional to the product of their strengths and inversely proportional to the square of the distance between them. Owing to the fact that the force between two poles depends on the medium... | |
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The force between two magnetic poles is proportional to the product of their strengths and inversely proportional to the square of the distance between them. 
