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diff --git a/887/CH2/EX2.2/2_2.sce b/887/CH2/EX2.2/2_2.sce
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+++ b/887/CH2/EX2.2/2_2.sce
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+clc
+//ex2.2
+V_s=90;      //source voltage
+R_1=10;
+R_2=30;
+R_3=60;
+R_eq_1=1/((1/R_2)+(1/R_3));      //R_2 and R_3 in parallel
+R_eq=R_1+R_eq_1;      //R_1 and R_eq_1 in series
+i_1=V_s/R_eq;      //ohm's law
+//i_1 flows clockwise through V_s,R_1 and R_eq_1
+V_2=R_eq_1*i_1;      //voltage across R_eq_1
+//As R_eq_1 is equivalent of parallel combination of R_2 and R_3, V_2 appears across both of them
+i_2=V_2/R_2;      //ohm's law
+i_3=V_2/R_3;      //ohm's law
+//we can verify KCL, i_1=i_2+i_3
+V_1=i_1*R_1;      //ohm's law
+//we can verify KVL, V_s=V_1+V_2
+P_s=-V_s*i_1;      //source power(-ve sign as V_s and i_1 have references opposite to passive configuration)
+P_1=i_1^2*R_1;      //power for R_1
+P_2=V_2^2/R_2;      //power for R_2
+P_3=V_2^2/R_3;      //power for R_3
+disp('FOR SOURCE')
+disp(i_1,'current in amperes')
+disp(P_s,'power in watts')
+disp('FOR R1')
+disp(i_1,'current in amperes')
+disp(V_1,'voltage in volts')
+disp(P_1,'power in watts')
+disp('FOR R2')
+disp(i_2,'current in amperes')
+disp(V_2,'voltage in volts')
+disp(P_2,'power in watts')
+disp('FOR R3')
+disp(i_3,'current in amperes')
+disp(V_2,'voltage in volts')
+disp(P_3,'power in watts')
+//we may verify that P_s+P_1+P_2+P_3=0