A very useful instrument for accurate measurement of low
resistances such
as shunts and specific resistances
determinations. The bridge comprises of variable standard
resistances, five
multiplying ratios and galvo key. The standard
resistances consist of 10 steps of (10x.01) ohms and a circular
slide
wire divided into 200 equal parts. The resistance of slide
wire is 0.02 ohms. Provision is made for the corrections of
the
Zero of the bridge. The multiplying ratios are x100, x10, x1,
x,0.1 and x .01. The total range is 2 micro ohms to
11 ohms. All
the coils are made of Manganin
wire.