1 files changed, 35 insertions, 0 deletions
diff --git a/887/CH3/EX3.3/3_3.sce b/887/CH3/EX3.3/3_3.sce
new file mode 100755
index 000000000..f5772db08
--- /dev/null
+++ b/887/CH3/EX3.3/3_3.sce
@@ -0,0 +1,35 @@
+clc
+//ex3.3
+C=10*10^-6;
+t_1=[0:0.001:1];
+t_2=[1.001:0.001:3];
+t_3=[3.001:0.001:5];
+t=[t_1,t_2,t_3];
+//voltage variations
+V_1=1000*t_1;
+V_2=0*t_2+1000;
+V_3=500*(5-t_3);
+//current i=C*dv/dt, for above equations we get
+i_1=C*(0*t_1+1000);
+i_2=C*(0*t_2);
+i_3=C*(0*t_3-500);
+i=[i_1,i_2,i_3];
+//power delivered, P=V*i
+P_1=C*(10^6*t_1);
+P_2=C*(0*t_2+1000);
+P_3=C*(-25*10^4*(5-t_3));
+P=[P_1,P_2,P_3];
+//energy stored, W=(1/2)*C*V^2
+W_1=(1/2)*C*V_1^2;
+W_2=(1/2)*C*V_2^2;
+W_3=(1/2)*C*V_3^2;
+W=[W_1,W_2,W_3];
+subplot(221)
+plot(t,i*10^3)
+xtitle('current vs time','time in seconds','current in mA')      //mA-milli amperes(10^-3)
+subplot(222)
+plot(t,P)
+xtitle('power delivered vs time','time in seconds','power in watts')
+subplot(223)
+plot(t,W)
+xtitle('energy stored vs time','time in seconds','work in joules')