diff options
Diffstat (limited to '695/CH2/EX2.43')
| -rwxr-xr-x | 695/CH2/EX2.43/Ex2_43.sce | 17 | ||||
| -rwxr-xr-x | 695/CH2/EX2.43/Ex2_43.txt | 17 | ||||
| -rwxr-xr-x | 695/CH2/EX2.43/R2_43.txt | 4 |
3 files changed, 38 insertions, 0 deletions
diff --git a/695/CH2/EX2.43/Ex2_43.sce b/695/CH2/EX2.43/Ex2_43.sce new file mode 100755 index 000000000..655a02f18 --- /dev/null +++ b/695/CH2/EX2.43/Ex2_43.sce @@ -0,0 +1,17 @@ +//Caption:Find the efficiency of the motor
+//Exa:2.43
+clc;
+clear;
+close;
+V=240;//in volts
+P=10000;//in watts
+R_a=0.25;//in ohms
+R_f=160;//in ohms
+I_f=V/R_f;
+I_L=5.2;//in amperes
+I_ao=I_L-I_f;
+W=V*I_ao-I_ao^2*R_a;
+I_a=(V-sqrt(V^2-4*R_a*(P+W)))/(2*R_a);
+P_in=P+W+I_a^2*R_a+I_f^2*R_f;
+Eff=P/P_in;
+disp(Eff*100,'Efficiency of the motor (in %)=')
\ No newline at end of file diff --git a/695/CH2/EX2.43/Ex2_43.txt b/695/CH2/EX2.43/Ex2_43.txt new file mode 100755 index 000000000..655a02f18 --- /dev/null +++ b/695/CH2/EX2.43/Ex2_43.txt @@ -0,0 +1,17 @@ +//Caption:Find the efficiency of the motor
+//Exa:2.43
+clc;
+clear;
+close;
+V=240;//in volts
+P=10000;//in watts
+R_a=0.25;//in ohms
+R_f=160;//in ohms
+I_f=V/R_f;
+I_L=5.2;//in amperes
+I_ao=I_L-I_f;
+W=V*I_ao-I_ao^2*R_a;
+I_a=(V-sqrt(V^2-4*R_a*(P+W)))/(2*R_a);
+P_in=P+W+I_a^2*R_a+I_f^2*R_f;
+Eff=P/P_in;
+disp(Eff*100,'Efficiency of the motor (in %)=')
\ No newline at end of file diff --git a/695/CH2/EX2.43/R2_43.txt b/695/CH2/EX2.43/R2_43.txt new file mode 100755 index 000000000..bce38bd70 --- /dev/null +++ b/695/CH2/EX2.43/R2_43.txt @@ -0,0 +1,4 @@ +
+ Efficiency of the motor (in %)=
+
+ 84.645365
\ No newline at end of file |