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-rw-r--r--3835/CH2/EX2.28/Ex2_28.sce11
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diff --git a/3835/CH2/EX2.28/Ex2_28.sce b/3835/CH2/EX2.28/Ex2_28.sce
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+clear
+//
+//req=[10+2+(5||15)]=15.75
+//case a
+c=0.4
+req=15.75
+s=-1/(c*req)
+printf("\n natural frequency= %0.1f secinverse",s)
+//case b
+tc=req*0.4 //time constant
+printf("\n time constant= %0.1f sec",tc)