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+// Exa 3.15
+clc;
+clear;
+close;
+// Given data
+T1= 25;// in °C
+T2= 100;// in °C
+deltaT= T2-T1;// in °C
+deltaV_F= -1.8*10^-3;// in mV/°C
+I_F= 26;// in mA
+V_F1= 0.7;// in V (at T1)
+V_F2= V_F1+(deltaT*deltaV_F);// in V (at T2)
+// At 25°C
+T= 25+273;// in K
+rd= 26/I_F*T/298;// in Ω
+disp(rd,"Junction dynamic resistance at 25°C in Ω is ")
+// At 100°C
+T= 100+273;// in K
+rd= 26/I_F*T/298;// in Ω
+disp(rd,"Junction dynamic resistance at 100°C in Ω is ")