// Example 2.4 clear; clc; close; format('v',7); // Given data f=50;//in Hz Z1m=3+%i*2.7;//in ohm Z1a=7+%i*3;//in ohm alfa=90;//in degree //Calculations //Z1a=7+%i*3-%i*Xc;//in ohm(Xc assumed to be connected in auxiliary winding) fi_a=90-atand(imag(Z1m),real(Z1m)) R1a=real(Z1a);//in ohm X1a=imag(Z1a);//in ohm X=tand(fi_a)*R1a;//in ohm Xc=X+X1a;//in ohm C=1/2/%pi/f/Xc;//in Farad disp(C*10^6,"Value of capacitance in micro farad : "); //Note : In the book, Torque is calculated even not asked in question and not given the sufficient data to calculate it.