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| author | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
| commit | 7bc77cb1ed33745c720952c92b3b2747c5cbf2df (patch) | |
| tree | 449d555969bfd7befe906877abab098c6e63a0e8 /3871/CH13/EX13.8/Ex13_8.sce | |
| parent | d1e070fe2d77c8e7f6ba4b0c57b1b42e26349059 (diff) | |
| download | Scilab-TBC-Uploads-master.tar.gz Scilab-TBC-Uploads-master.tar.bz2 Scilab-TBC-Uploads-master.zip | |
Diffstat (limited to '3871/CH13/EX13.8/Ex13_8.sce')
| -rw-r--r-- | 3871/CH13/EX13.8/Ex13_8.sce | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/3871/CH13/EX13.8/Ex13_8.sce b/3871/CH13/EX13.8/Ex13_8.sce new file mode 100644 index 000000000..bba9c53ce --- /dev/null +++ b/3871/CH13/EX13.8/Ex13_8.sce @@ -0,0 +1,33 @@ +//=====================================================================================
+//Chapter 13 example 8
+
+clc;clear all;
+
+//variable declaration
+d = 0.1; //diameter in m
+a = 33.5*10^-6; //cross sectional area of iron ring in m^2
+Ns = 220; //number of turns on secondary coil
+Nm = 320; //number of turns on magnetising winding
+I = 10; //current in A
+B = 2.5*10^-3; //flux in Wb
+n = 102; //reading of scale
+g = 272; //galvanometer throw
+
+
+//calculations
+l = (%pi)*d; //mean length of iron ring in m
+H = (Nm*I)/(l); //magnetising force with 10 A current
+K = B/(n);
+//2*phi*Ns = K*g
+phi = (K*g)/(2*Ns); //flux in Wb
+B1 = phi/(a); //flux density in Wb/m**2
+u0 = 4*%pi*10^-7;
+//B = u0*ur*H
+x = u0*H;
+//B = x*ur
+//ur = B/x
+ur = B1/x; //relative permeability
+
+//result
+mprintf("relative permeability = %3.1f",ur);
+
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