| http://www.w3.org/ns/prov#value | - DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic of a resistance bridge which includes a differential operational amplifier; FIG. 2 is a schematic of another embodiment of the resistance bridge where the output of the differential operational amplifier provides the source of operating potential; FIG. 3 is a schematic of the resistance bridge shown in FIG. 2 including means for compensating for im
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