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diff --git a/608/CH3/EX3.09/3_09.sce b/608/CH3/EX3.09/3_09.sce
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+//Problem 3.09: An aluminium cable has a resistance of 27 ohms at a temperature of 35°C. Determine its resistance at 0°C. Take the temperature coefficient of resistance at 0°C to be 0.0038/°C
+
+//initializing the variables:
+R1 = 27; // in ohms
+T0 = 0; // in °C
+T1 = 35; // in °C
+a0 = 0.0038; // in per°C
+pi = 3.14;
+
+//calculation:
+R0 = R1/[1 + (a0*T1)]
+
+printf("\n\nResult\n\n")
+printf("\nresistance %.2f Ohm\n",R0)
+\ No newline at end of file