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+// Example 8.1
+// Analysis of a Transformer Circuit
+// Form figure 8.4(a)
+N=3; // Ideal step-up transformer
+V=complex(60,0);
+omega=5000;// Radian frequency (rad/s)
+Z_R=90; // Ohms
+C=10*10^-6; // Farad
+Z_C=1/(%i*omega*C);
+// From frequency domain diagram 8.4(b)
+V_1=V;
+V_2=3*V;
+I_R=(3*V_1)/Z_R; // Ohm's law for AC circuits
+I_C=(V_1-V_2)/Z_C // Ohm's Law
+I_2=I_C-I_R; // KCL
+I=I_C-3*I_2;// KCL
+Z=V/I;
+P=0.5*real(Z)*abs(I)^2;
+P_R=0.5*Z_R*abs(I_R)^2;
+disp(P,"Average power supplied by the source(in Watts)=")
+disp(P_R,"Average power dissipated by 90-Ohm resistor(in Watts)=")
+disp("All the power from source is transferrd to the resistor")
+