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+//Caption:Finding the current in the circuit and plot V vs T and I vs T curve
+//Exa:1.2
+clc;
+clear;
+close;
+//Refer to figure 1.5a
+L=1*10^-3;//henery
+R=3;//ohms
+C=200*10^-6;//faraday
+disp("v(t)=14.142cos1000t")
+V_m=14.142;//Peak value of applied voltage (in Volts)
+V=V_m/sqrt(2);//RMS value of applied voltage (in Volts)
+//On comparing with standard equation v(t)=acoswt
+w=1000;//in radian/second
+//Inductive impedance=jwL
+Z_L=%i*w*L;//in ohms
+//capacitive impedance=-j/wC
+Z_c=-%i/(w*C);//in ohms
+//Impedance of the circuit is given by
+Z=Z_L+Z_c+R;//in ohms
+I=V/Z//Current in the circuit//in Amperes
+r=real(I);
+i=imag(I);
+magn_I=sqrt((r^2)+(i^2));//magnitude of current (in Amperes)
+phase_I=atand(i/r);//phase of current (in degree)
+disp(magn_I,'magnitude of current (in Amperes)');
+disp(phase_I,'phase of current (in Degrees)');
+xset('window',1);
+xtitle("current -time plot","time (in Seconds)","current (in Amperes)");
+z=linspace(0,20,10);
+x=linspace(0,%pi,100);
+z=2.828*cos((1000*x)+(atan(i/r)));
+plot(x,z);
+xset('window',2);
+xtitle("voltage-time plot","time (in Seconds)","voltage (in Volts)");
+x=linspace(0,%pi,100);
+y=linspace(0,20,10);
+y=14.142*cos(1000*x);
+plot(x,y);
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