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clear//
//Variables
R = 1000.0 //Resistance (in ohm)
sig = 5.8 * 10**7 //Conductivity in (Siemen per meter)
d = 10**-3 //diameter (in meter)
E = 10 * 10**-3 //Eletric field (in Volt per meter)
//Calculation
l = R *sig * %pi * d**2 /4 //length (in meter)
J = sig * E //Current density (in Ampere per metersquare)
//Result
printf("\n Length of wire is %0.2f km.\nCurrent desity is %0.3f A/(m*m).",l/1000,J)
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