Determination of the degree of uniformity of bars for magnetic standards (1918)
National Bureau of Standards · leaf 16
spot near region A Numerical data for the 12 wrought-iron bars of Fig. 7 (Table 1)show that not one of these bars comes within this limit. The bestone shows a maximum deviation of 16 per cent and may be usedwhere an accuracy better than 2 per cent is not necessary. Thenext best bar has a maximum… … » o • o- -e o Ql o - ° o • -* ° ° <*5 receive**
Magnetism · Measurements and use of instruments · Magnetic properties and materials A4100 Electricity and magnetism · Fields and charged particles
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