diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2252/CH7/EX7.7/Ex7_7.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2252/CH7/EX7.7/Ex7_7.sce')
| -rwxr-xr-x | 2252/CH7/EX7.7/Ex7_7.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2252/CH7/EX7.7/Ex7_7.sce b/2252/CH7/EX7.7/Ex7_7.sce new file mode 100755 index 000000000..7fa398ef9 --- /dev/null +++ b/2252/CH7/EX7.7/Ex7_7.sce @@ -0,0 +1,20 @@ +
+//r1 be the variable resistance
+X=10//total inductive reactance of circuit
+V=200//rms value of applied voltage
+//RMS value of current I=200/sqrt((2+r1)^2+10^2)
+//power consumed is P=I^2*r1
+//For max power, dP/dr=0
+//on solving
+r1=sqrt(104)
+mprintf("Value of variable resistor at the instant of max power consumed in it is %f ohm\n",r1)
+//solving part(ii), let r2 be the variable resistance-I=200/sqrt((200+r2)^2+10^2),P=I^2*(2+r2)
+//for max power, dP/dr=0
+//on solving
+r2=10-2
+mprintf("Value of variable resistor=%d ohm for the condition of max power consumed by the circuit\n",round(r2))
+I1=200/sqrt((2+r1)^2+10^2)
+I2=200/sqrt((2+r2)^2+10^2)
+pf1=(2+r1)/sqrt((2+r1)^2+10^2)
+pf2=(2+r2)/sqrt((2+r2)^2+10^2)
+mprintf("Current in case(i)=%f A at %f pf lagging\nCurrent in case(ii)=%f A at %f pf lagging\n",I1,pf1,I2,pf2)
|