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Diffstat (limited to '3871/CH6/EX6.6/Ex6_6.sce')
| -rw-r--r-- | 3871/CH6/EX6.6/Ex6_6.sce | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/3871/CH6/EX6.6/Ex6_6.sce b/3871/CH6/EX6.6/Ex6_6.sce new file mode 100644 index 000000000..c831c704d --- /dev/null +++ b/3871/CH6/EX6.6/Ex6_6.sce @@ -0,0 +1,30 @@ +//===========================================================================
+//chapter 6 example 6
+clc;clear all;
+
+//variable declaration
+Rsh = 0.02; //shunt resistance in Ω
+V = 0.5; //potential difference across the shunt in V
+Rm = 1000; //resistance in Ω
+I1 = 10; //current in A
+I2 = 75; //current in A
+I = 100; //current in A
+x = 40; //deflection %
+
+//calculations
+Is = V/(Rs); //current through shunt in A
+Im = V/(Rm); //current through ammeter for full-scale defelction in A
+V1 = I1*Rsh; //voltage across shunt for 10A in V
+R1 = V1/(Im); //resistance for the ammeter for a current of 10 A for full-scale defelction in Ω
+V2 = I2*Rsh; //voltage across shunt for 75A in V
+R2 = V2/(Im); //resistance for the ammeter for a current of 75 A for full-scale defelction in Ω
+I3 = I*(100/(x)); //full-scale defelction current when 100 A gives 40% defelction
+V3 = I3*Rsh; //voltage across shunt for 250 A in V
+R3 = V3/(Im); //resistance for the ammeter for a current of 250 A for full-scale defelction in Ω
+
+
+//result
+mprintf("current through ammeter for full-scale defelction is %3.2f mA",(Im*10^3));
+mprintf("\nResistance for the ammeter for a current of 10 A for full-scale defelction is %3.2f Ω",R1);
+mprintf("\nResistance for the ammeter for a current of 75 A for full-scale defelction is %3.2f Ω",R2);
+mprintf("\nResistance for the ammeter for a current of 250 A for full-scale defelction is %3.2f Ω",R3);
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