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// Example 8.4
// From the diagram 4.5
V1=20; // Source voltage
R=80; // Series resistance
io1=V1/R; // Steay state current
disp(' Steay state current (at t=0- ) = '+string(io1)+' Amp');
// Because current in inducor can't charge instantaneously
disp(' Steay state current (at t=0+ ) = '+string(io1)+' Amp');
V2=40; // Source voltage
Io2=(V1+V2)/R; // Steay state current at t= infinity
disp(' Steay state current (at t= infinity ) = '+string(Io2)+' Amp');
L=40*10^-3; // Inductor
t1=L/R; // Time COnstant
t=0.001; // Time of 1 ms
// By the formula ==> i(1 ms)= io1*(io1-Io2)*(1-e-(t/t1))
Ims=io1+(Io2-io1)*(1-exp (-t/t1)); // Steay state current (at t=1ms)
disp(' Steay state current (at t= 1ms ) = '+string(Ims)+' Amp');
// p 279 8.4
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