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diff --git a/3784/CH1/EX1.9/Ex1_9.sce b/3784/CH1/EX1.9/Ex1_9.sce
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+clc
+// Variable Initialization 
+Vm=230 //Supply Voltage in Volts
+Ia=50//Motor Armature current in Ampere
+Ra=0.25//Armature circuit resistance in Ohm
+Rf=200 // Field circuit resistance in Ohm
+f=50 //source Frequency in Hz
+a=45 //Firing angle  in the armature  circuit in degree
+Vd=1 //Brush contact drop V/brush
+af=0 //Firing angle in the field circuit in degree
+Kf=1.1 //Torque and voltage constant
+
+//Solution
+Vf=(2*Vm*1.414)*cosd(af)*(1/%pi) //Voltage in field circuit in Volts
+//When a=45 degree
+Va=(2*Vm*1.414)*cosd(a)*(1/%pi) //Voltage in Armature circuit in Volts
+If=Vf/Rf //Field current in Amp.
+T=Kf*Ia*If //Torque in N-m
+Eb=Va-(Ia*Ra)-Vd*2 //Back emf in Volts
+W=Eb/(Kf*If) //Angular speed in Rad/sec
+N=W*60/(2*%pi) //Motor speed in RPM
+
+//Results
+printf('\n\n The motor Torque =%0.1f N-m \n\n',T)
+printf('\n\n The motor Speed=%0.1f RPM \n\n',N)