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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3835/CH2/EX2.30 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3835/CH2/EX2.30')
| -rw-r--r-- | 3835/CH2/EX2.30/Ex2_30.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/3835/CH2/EX2.30/Ex2_30.sce b/3835/CH2/EX2.30/Ex2_30.sce new file mode 100644 index 000000000..68913d182 --- /dev/null +++ b/3835/CH2/EX2.30/Ex2_30.sce @@ -0,0 +1,23 @@ +clear +// +v=120 +r=40 +i=v/(r) +//applying kvl to the closed loop +v=3*520 +printf("\n voltage= %0.1f v",v) +//when v=120,R can be found by I*(r+20)=120-->r=20 +r=20 +printf("\n r=20 ohm") +//when r=20 total r=20+20+20=60 +r=60 +l=10 +tc=l/(r) //time constant +printf("\n tc= %0.1f sec",tc) +//i=I0*e^-(t/tc)=3*e^(-6t) +energy=(10*9)/(2) +benergy=0.05*energy +printf("\n balance energy= %0.1f J",benergy) +//(L*i^2)/2=2.25-->hence i=0.6708 +//3*e^-6t=0.6708-->e^-6t=0.2236-->applying log on both sides we get t=0.25 +printf("\n t=0.25 sec") |