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 /2345/CH15/EX15.39 | |
| 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 '2345/CH15/EX15.39')
| -rwxr-xr-x | 2345/CH15/EX15.39/Ex15_39.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/2345/CH15/EX15.39/Ex15_39.sce b/2345/CH15/EX15.39/Ex15_39.sce new file mode 100755 index 000000000..8a9fb6d82 --- /dev/null +++ b/2345/CH15/EX15.39/Ex15_39.sce @@ -0,0 +1,20 @@ +//Finding resistance and cost
+//Example 15.39(pg. 418)
+clc
+clear
+m=2//weight of water to be heated in kg
+t2=98,t1=15//temp in degreeC
+s=1//specific heat of water
+V=200//voltage in volts
+H=m*s*(t2-t1)//energy required to raise the temp of water in kcal
+H1=H*4200//energy in Watt-sec or Joules
+e=0.85//efficiency of kettle
+E=H1/e//energy input required in watt-sec
+E1=E/(1000*3600)//energy input in kWh
+c=35//cost per unit in paise
+C=c*E1//ocst of energy used in paise
+t=10/60//time in hrs
+W=E1*1000/t//wattage of kettle in watts
+R=V*V/W//resistance of heating element in ohms
+printf('Thus the resistance of heating element is %2.0f ohms\n',R)
+printf('And the cost of energy used is %2.0f paisa',C)
|