 | Chemical Society (Great Britain) - Chemistry - 1918 - 480 pages
...we are considering is represented by e-«o*/'"* where e is the base of natural logarithm. Now if c is the square root of the mean of the squares of the speeds, we have c2=|F'2, and the required fraction becomes (Since there are ions of different equivalent... | |
 | Sir Robert Stawell Ball, Robert Stawell Ball - Sun - 1893 - 422 pages
...matter, I ought perhaps to explain that by average velocity we mean that particular quantity which is the square root of the mean of the squares of the actual velocities. In the case of oxygen the mean velocity of the molecule at the same temperature... | |
 | Engineering - 1897 - 962 pages
...so that the loads on the rotaries did not vary simultaneously? An electro-dynamometer measures the square root of the mean of the squares of the instantaneous values of the current passing through its coils, while an instrument of the d' Arson val type having a coil... | |
 | Albert Algernon Atkinson - Electricity - 1902 - 336 pages
...and is that which is available for producing heat if applied to a resistance. The effective pressure is the square root of the mean of the squares of the successive pressures during one-half a revolution of the pressure coil, because the successive heats... | |
 | Silvanus Phillips Thompson - Electric generators - 1905 - 962 pages
...the height, and take the square-root of the quotient. Or we may arithmetically take the square-root of the mean of the squares of the instantaneous values. If the graphic process is adopted regard must be had to the units employed. For instance, suppose that the... | |
 | Henry G. Solomon - Electric meters - 1906 - 412 pages
...in an alternating current system c and v denote the effective or virtual values (the virtual value is the square root of the mean of the squares of the values during half a period) of the current and pressure as given by an alternating current ammeter... | |
 | Henry Hutchinson Norris - Electric engineering - 1907 - 474 pages
...its zero position is proportional to the effective value of the current, which is, by definitien, the square root of the mean of the squares of the instantaneous values. Summary: The electro -dynamometer may be used for the determination of the effective value of an alternating... | |
 | Charles Samuel Myers - Perception - 1909 - 456 pages
...Standard Deviation. — The " standard deviation " or the " mean square error," z denoted by the letter a, is the square root of the mean of the squares of the individual variations from the mean (exp. 85). [The Coefficient of Variation. — The deviations of... | |
 | Harold Pender - Electric engineering - 1910 - 366 pages
...amperes this effective value Is always meant unless specifically stated otherwise. In the same manner the square root of the mean of the squares of the instantaneous values of an alternating potential difference is called the EFFECTIVE value of the alternating potential difference.... | |
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The square root of the mean of the squares of the instantaneous values for one complete cycle. 
