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+clear//
+
+//Variables
+
+l = 120 //length of wire (in meter)
+d = 0.25 * 10**-2 //Diameter of cross section (in meter)
+p = 1.7 * 10**-8 //Resistivity (in ohm-meter)
+
+//Calculation
+
+r = d/2 //Radius of cross section (in meter)
+A = %pi *r*r //Area of cross section (in metersquare)
+R = p*l/A //Resistance (in ohm)
+
+//Result
+
+printf("\n Resistance of the wire is %0.3f ohm.",R)