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//chapter-10,Example10_1,pg 292
Vs=12//source voltage
R=120//resistance of arms
delv=0.3//variation in output voltage(+/-)0.3
delRbyR=(4/Vs)*(delv)*100//percent change in resistance
Rm=100//meter resistance
delIm=(delRbyR/100)/(4*R*(1+(Rm/R)))//current variation
printf("percent change in resistance\n")
printf("delRbyR=%.2f \n",delRbyR)
printf("current variation\n")
printf("delIm=%.6f A",delIm)
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