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diff --git a/3515/CH4/EX4.7/Ex_4_7.sce b/3515/CH4/EX4.7/Ex_4_7.sce
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+// Exa 4.7
+format('v',7);
+clc;
+clear;
+close;
+// Given data 
+V_CM= 0;
+V_BE= -0.7;// in volt
+v_E= V_CM-V_BE;// in volt
+disp(v_E,"Value of v_E in volts is : ")
+
+I_E= (5-0.7)/10^3;// in A
+v_B1= 0.5;// in V
+v_B2= 0;// in V
+// Due to Q1 is off; therefore
+v_C1= -5;// in V
+v_C2= I_E*10^3-5;// in V
+disp(v_C1,"Value of v_C1 in volts is : ")
+disp(v_C2,"Value of v_C2 in volts is : ")