 Ohm, which is based upon the ohm equal to io9 units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521...  Science - Trang 300được biên tập bởi - 1895Xem Toàn bộ - Giới thiệu về cuốn sách này
 | Franklin Institute (Philadelphia, Pa.) - 1915 - 974 trang
...Conference defined the international ohm as the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting...in mass, of a constant cross-sectional area and of a length of 106.300 centimetres. Owing to the impossibility of exact realization of the above conditions,... | |
 | 1895 - 1104 trang
...temperature of melting ice fourteen and four thousand five hundred and twenty-one ten-thousandths grams in mass, of a constant cross-sectional area, and of the length of one hundred and six and three-tenths centimeters. Second. The unit of current shall be what is known... | |
 | National Academy of Sciences (U.S.) - 1888 - 840 trang
...temperature of melting ice fourteen and four thousand five hundred and twenty-one ten-thousandths grams in mass, of a constant cross-sectional area, and of the length of one hundred and six and three-tenths centimeters. Second. The unit of current shall be what is known... | |
 | American Institute of Electrical Engineers - 1893 - 780 trang
...deposits silver at the rate of 0.001118 of a gramme per second. An ohm shall be the resistance offered by a column of mercury at the temperature of melting...in mass, of a constant cross-sectional area, and of a length of 106.3 centimetres. It is recommended that material standards of this value, constructed... | |
 | 1893
...deposits silver at the rate of 0.001 118 of a gramme per second. An ohm shall be the resistance offered by a column of mercury at the temperature of melting...in mass, of a constant cross-sectional area, and of a length of 106.3 centimetres. It is recommended that material standards of this value, constructed... | |
 | 1894 - 528 trang
...Carhart presented the following resolution: The resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in mass of a constant cross sectional area and of length of 106.8 centimetres." The motion was carried. Dr. von Helmholtz... | |
 | 1894 - 528 trang
...unit of resistance, the following, viz: The resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grammes in muss of a constant cross sectional area and of length of 106.8 centimetres." The motion was carried.... | |
 | Silvanus Phillips Thompson - 1894 - 668 trang
...offered to an unvarying electric current by a column of mercury at the temperature of melting ice 14'4521 grammes in mass, of a constant cross-sectional area and of the length of 106-3 centimetres. 680 " As a unit of current, the international ampere, which is onetenth of the unit... | |
 | British Association for the Advancement of Science - 1894 - 1104 trang
...to an unvarying electric current by a column of mercury at the temperature of melting ice 14'4-r)21 grammes in mass, of a constant cross-sectional area and of the length of 106-3 cm. As a unit of current, the international ampere, which is one-tenth of the unit of current... | |
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