Research on the absolute unit of electrical resistance

1878 ◽  
Vol s3-15 (89) ◽  
pp. 325-336
Author(s):  
H. A. Rowland
Keyword(s):  
Electrical Resistance ◽  
The Absolute

scholarly journals The absolute measurement of resistance by the method of Albert Campbell

1937 ◽  
Vol 236 (769) ◽  
pp. 423-471 ◽  
Keyword(s):  
Electric Current ◽  
Electrical Resistance ◽  
Glass Tube ◽  
Absolute Measurement ◽  
Cross Sectional Area ◽  
Precision Measurements ◽  
Sectional Area ◽  
Cross Sectional ◽  
The Absolute ◽  
London Conference

Throughout the last 25 years nearly all precision measurements of electrical resistance have been expressed in terms of the International Ohm, a unit which was defined by the London Conference of 1908 (Glazebrook, 1922-3) as follows : “ The International Ohm is 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 a length of 106.300 centimetres". Any measurement in terms of this unit is dependent on experiments in which a glass tube, the dimensions of which have been accurately measured, is

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