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+// Example 3.16: Series resistance R, Maximum zener current
+clc, clear
+// In Fig. 3.39
+Vz=7.2; // in volts
+ILmin=12e-3; // in amperes
+ILmax=100e-3; // in amperes
+Vs=20; // in volts
+Izmin=10e-3; // in amperes
+Rs=(Vs-Vz)/(ILmax+Izmin); // Series resistance in ohms
+disp(Rs,"Series resistance (Ω) =");
+// For ILmin=0
+Izmax=((Vs-Vz)/Rs); // in amperes
+Izmax=Izmax*1e3; // in miliamperes
+disp(Izmax,"Maximum zener current (mA) ="); \ No newline at end of file