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+// Example 2.14 :circuit elements
+clc;
+close;
+format('v',6)
+// given :
+//v=311*sin(2500*t+170) V voltage equation
+//I=15.5*sin(2500*t-145)A current equation
+vm=311/sqrt(2);//voltage in volts
+va=170;//angle in degree
+im=15.5/sqrt(2);//current in amperes
+ia=-145;//angle in degree
+zm=vm/im;//resistance in ohms
+za=(va-ia)-360;//resistance ohms
+z1=zm*cosd(za);//resistance in ohms
+z2=zm*sind(za);//resistance in ohms
+z=z1+%i*z2;//resistance in ohms
+t=2500;//time in seconds
+c=(1/(real(z)*t));//capacitance in farads
+disp(z,"Impedance is ,(Ohm)=")
+disp(c*10^6,"capacitance is ,(micro-farads)=")
+