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Diffstat (limited to '3487/CH3/EX3.1/Ex3_1.sce')
| -rw-r--r-- | 3487/CH3/EX3.1/Ex3_1.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/3487/CH3/EX3.1/Ex3_1.sce b/3487/CH3/EX3.1/Ex3_1.sce new file mode 100644 index 000000000..1577f6649 --- /dev/null +++ b/3487/CH3/EX3.1/Ex3_1.sce @@ -0,0 +1,28 @@ +//Chapter 3,Example 3.1 Page 104 +clc +clear +R1 = 75 //ohms +R2 = 2600 //ohms +C1 = 25 // nF +C2 = 2.5 //nF +alpha = (10^9/2)*(1/(R2*C1)+1/(R1*C1)+1/(R1*C2)) +beeta = (1/2)*sqrt(4*alpha^2-4*10^18/(R1*R2*C1*C2)) +t1 = (1/(2*beeta))*log((alpha+beeta)/(alpha-beeta)) +K = 0.7/(t1*(alpha-beeta))+1 +t2 = K*t1 +printf (" alpha = %e \n ",alpha) +printf (" beta = %e \n ",beeta) +printf (" K = %f \n ",K) +printf (" t1 = %e micro sec \n ",t1*10^6) +printf (" t2 = %f micro sec \n ",t2*10^6) + +//Aproximating the circuit and neglecting R2 +t1 = 3*((C1*C2*10^-18)/(C1+C2*10^-9))*R1 +// C1 and C2 are in parallel and R1 and R2 in series +t2 = 0.7*(R1+R2)*(C1+C2)*10^-9 +printf (" t1 = %f micro sec \n ",t1*10^9*10^6) +printf (" t2 = %f micro sec \n ",t2*10^6) +printf ("On comparison with the values obtained through exact formulate it is found that whereas wave tail time is more or less same, \n the wave front time as calculated through approximate formula is quite erroneous.") + +// Answers may vary due to round off error + |