1-28have less loading effect on circuits, a high-sensitivity meter will provide a more accurate voltagemeasurement.To determine the sensitivity of a meter movement, you need only to divide 1 by the amount ofcurrent needed to cause full-scale deflection of the meter movement. The manufacturer usually marksmeter movements with the amount of current needed for full-scale deflection and the resistance of themeter. With these figures, you can calculate the sensitivityand the full-scale voltage reading full-scale current (full-scale current resistance).)RU H[DPSOH LI D PHWHU KDV D IXOO VFDOH FXUUHQW RI A and a resistance of 960W, the sensitivitycould be calculated as:The full-scale voltage reading would be calculated as:Full-scale voltage reading = full-scale current resistance)XOO VFDOH YROWDJH UHDGLQJ $ 960WFull-scale voltage reading = 48mVRANGESTable 1-1 shows the figures for most meter movements in use today.CURRENT TODEFLECT FULLSCALERESISTANCESENSITIVITYVOLTAGE FULLSCALE1mAN 92/7.1 V$N 92/7.048 V$N 92/7.029 VTable 1-1.—Meter Movement CharacteristicsNotice that the meter movements shown in table 1-1 will indicate .029 volts to .I volt at full scale,and the sensitivity ranges from 1000 ohms per volt to 200,000 ohms per volt. The higher sensitivity