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+clc
+// Variable Initialization 
+Vm=230//Supply Voltage in Volts
+Ra=0.75//Armature circuit resistance in Ohm
+I=8 //Armature current in Amp
+Nr=1200 //Motor speed in Rpm
+Va=220//Rated voltage of motor in Volts
+a=45//firing angle in Degree
+T=8 //Motor torque in N-m
+Nr1=800 //Speed in Rpm
+
+
+//Solution
+N=(Nr*2*%pi)/60 //Speed in Rad/sec
+Kaf=(Va-I*Ra)/N //Motor Constant
+//(A) For torque of 8 N-m
+Ia=T/Kaf //Armature Current in Amp
+V=(2*Vm*1.414)*cosd(a)*(1/%pi)//Average voltage in Volts
+W=(V-Ia*Ra)/Kaf //Angular speed in Rad/sec
+N=(W*60)/(2*%pi) //Speed in Rpm
+//(B) a=45 Degree
+N1=(Nr1*2*%pi)/60 //Speed in Rad/sec
+Ia1=(V-Kaf*N1)/Ra //armature current in amp
+T1=Kaf*Ia1 //Torque in N-m
+
+//Results
+printf('\n\n The motor Speed  =%0.1f RPM \n\n',N)
+printf('\n\n The motor Torque=%0.1f N-m \n\n',T1)
+//The answers vary due to round off error