Electrical measuring instruments : grand prize Louisiana Purchase Exposition, St. Louis, 1904 (1904)
Leeds and Northrup Company · leaf 18
y adjusted resistances required tomeasure any resistance from .00001 to .1 ohm to an accuracy of ^V of 1%convinced us that the result could be more economically gotten by usinga variable low resistance and a few ratio coils rather than by using a fewlow resistances and a large set of variable ratio… … 4300. Variable Standard Low Resistance $210 00 The construction of this variable resistance is shown in the diagram.AB is a heavy piece of resistance nicta! of uniform cross section and nni- t l8 THE LEEDS & NOKTHRUP COMPANY form resistance per unit of length; CD is another piece of resistance…
