| POTENTIOMETER DECADE PATTERN |
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| POTENTIOMETER DECADE PATTERN
(1727)
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| Eight steps of 2 ohms and a slide wire of equal resistance enclosed, circular
type,
divided into 200 parts and calibrated to read in millivolts all in series and with coarse and fine rheostats
provide the standardizing unit. Terminals are provided for standard cell, galvanometer and two 1.5 volts batteries and two
sets of external test circuits, worked by a rotary switch. Standard cell is got into circuit without alteration to the list
circuit. Range of measurement 0.0005 to 1.8 volts accuracy
0.05% |
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