diff options
Diffstat (limited to '887/CH15/EX15.6/15_6.sce')
-rwxr-xr-x | 887/CH15/EX15.6/15_6.sce | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/887/CH15/EX15.6/15_6.sce b/887/CH15/EX15.6/15_6.sce new file mode 100755 index 000000000..06dc01db1 --- /dev/null +++ b/887/CH15/EX15.6/15_6.sce @@ -0,0 +1,39 @@ +clc
+//ex15.6
+w_core=2*10^-2; //width
+d_core=2*10^-2; //depth
+A_core=w_core*d_core; //area of core
+M_r=1000; //relative permeability
+M_o=4*%pi*10^-7; //permeability of free space
+gap_a=1*10^-2;
+gap_b=0.5*10^-2;
+N=500; //number of turns of coil
+i=2; //current in the coil
+l_c=10*10^-2; //length for center path
+R!_c=l_c/(M_r*M_o*A_core); //reluctance of center path
+//For left side
+//taking fringing ino account
+A_gap_a=(w_core+gap_a)*(d_core+gap_a); //area of gap a
+R!_gap_a=gap_a/(M_o*A_gap_a); //reluctance of gap a
+l_s=10*10^-2; //side of square
+l_core_l=3*l_s-gap_a; //mean length on left side
+R!_core_l=l_core_l/(M_r*M_o*A_core); //reluctance of core
+R!_L=R!_core_l+R!_gap_a; //total reluctance on left side
+//For right side
+//taking fringing ino account
+A_gap_b=(w_core+gap_b)*(d_core+gap_b); //area of gap b
+R!_gap_b=gap_b/(M_o*A_gap_b); //reluctance of gap b
+l_s=10*10^-2; //side of square
+l_core_r=3*l_s-gap_b; //mean length on right side
+R!_core_r=l_core_r/(M_r*M_o*A_core); //reluctance of core
+R!_R=R!_core_r+R!_gap_b; //total reluctance on right side
+R!_T=R!_c+1/((1/R!_L)+(1/(R!_R))); //total reluctance
+phi_c=N*i/(R!_T); //flux in the center leg of coil
+//by current-division principle
+phi_L=phi_c*R!_R/(R!_L+R!_R); //left side
+phi_R=phi_c*R!_L/(R!_L+R!_R); //right side
+B_L=phi_L/A_gap_a; //flux density in gap a
+B_R=phi_R/A_gap_b; //flux density in gap b
+printf(" All the values in the textbook are approximated hence the values in this code differ from those of Textbook")
+disp(B_L,'flux density in gap a in tesla')
+disp(B_R,'flux density in gap b in tesla')
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