14 files changed, 209 insertions, 0 deletions
diff --git a/3769/CH7/EX7.10/Ex7_10.sce b/3769/CH7/EX7.10/Ex7_10.sce
new file mode 100644
index 000000000..cd53ef70d
--- /dev/null
+++ b/3769/CH7/EX7.10/Ex7_10.sce
@@ -0,0 +1,16 @@
+clear
+//Given
+E=12                   //V
+I=1                     //A
+r=0.5                   //ohm
+
+//Calculation
+P1=E*I
+P2=I**2*r
+P=P1-P2
+
+//Result
+printf("\n (i) Rate of consumption of chemical energy is %0.3f  W", P1)
+printf("\n (ii) Rate Of energy dissipated inside the battery is %0.3f  W",P2)
+printf("\n (iv) Rate of energy dissipated in the resistor is %0.3f  W", P)
+printf("\n (v) Power output of the source is %0.3f  W",P)
diff --git a/3769/CH7/EX7.11/Ex7_11.sce b/3769/CH7/EX7.11/Ex7_11.sce
new file mode 100644
index 000000000..1d82071f2
--- /dev/null
+++ b/3769/CH7/EX7.11/Ex7_11.sce
@@ -0,0 +1,22 @@
+clear
+//Given
+P=110                      //W
+P1=100                     //W
+n=5
+V=220                      //V
+t=2                     //hours
+n1=4
+P2=1120                   //W
+m=1.5                         //per KWh
+
+//Calculation
+W=n*P1
+W1=V*t
+W2=n1*P
+W3=W+W1+W2+P2
+E=(W3*t)*10**-3
+E2=E*30
+B=m*E2
+
+//Result
+printf("\n Electricity bill for the month of september is %0.3f  Rs", B)
diff --git a/3769/CH7/EX7.12/Ex7_12.sce b/3769/CH7/EX7.12/Ex7_12.sce
new file mode 100644
index 000000000..2af081e16
--- /dev/null
+++ b/3769/CH7/EX7.12/Ex7_12.sce
@@ -0,0 +1,13 @@
+clear
+//Given
+V=220                         //V
+P=60.0                            //W
+P1=85                            //w
+
+//Calculation
+//
+R=V**2/P
+V1=sqrt(P1*R)
+
+//Result
+printf("\n Maximum voltage is %0.1f  V",V1)
diff --git a/3769/CH7/EX7.13/Ex7_13.sce b/3769/CH7/EX7.13/Ex7_13.sce
new file mode 100644
index 000000000..b2eb77f35
--- /dev/null
+++ b/3769/CH7/EX7.13/Ex7_13.sce
@@ -0,0 +1,14 @@
+clear
+//Given
+V=200              //V
+P=500.0                 //W
+V1=160               //v
+
+//Calculation
+R=V**2/P
+H=V1**2/R
+P1=P-H
+H1=P1*100/P
+
+//Result
+printf("\n Heat percentage is %0.3f  percentage", H1)
diff --git a/3769/CH7/EX7.15/Ex7_15.sce b/3769/CH7/EX7.15/Ex7_15.sce
new file mode 100644
index 000000000..0381b48af
--- /dev/null
+++ b/3769/CH7/EX7.15/Ex7_15.sce
@@ -0,0 +1,19 @@
+clear
+//Given
+m=900
+w=100.0
+c=1
+a=80
+b=4.2
+V=210                   //V
+x=12
+y=60
+
+//Calculation
+Hout=(m+w)*c*a
+Hin=(V*x*y)/b
+Hin1=90/w*Hin
+I=Hout/Hin1
+
+//Result
+printf("\n Strength of the current is %0.3f  A",I)
diff --git a/3769/CH7/EX7.16/Ex7_16.sce b/3769/CH7/EX7.16/Ex7_16.sce
new file mode 100644
index 000000000..fc08bc97c
--- /dev/null
+++ b/3769/CH7/EX7.16/Ex7_16.sce
@@ -0,0 +1,10 @@
+clear
+//Given
+a=0.8
+
+//Calculation
+H=a**2
+H1=(1-H)*100
+
+//Result
+printf("\n Decreased percentage is %0.3f  percentage", H1)
diff --git a/3769/CH7/EX7.17/Ex7_17.sce b/3769/CH7/EX7.17/Ex7_17.sce
new file mode 100644
index 000000000..d34591133
--- /dev/null
+++ b/3769/CH7/EX7.17/Ex7_17.sce
@@ -0,0 +1,14 @@
+clear
+//Given
+a=14
+b=60
+c=24
+d=7.0
+
+//Calculation
+t=a*b/60.0
+t1=(c/d)
+
+//Result
+printf("\n (i) Time in series is %0.3f  minute", t)
+printf("\n (ii) Time in parallel is %0.2f  minute",t1)
diff --git a/3769/CH7/EX7.19/Ex7_19.sce b/3769/CH7/EX7.19/Ex7_19.sce
new file mode 100644
index 000000000..6f3e267c9
--- /dev/null
+++ b/3769/CH7/EX7.19/Ex7_19.sce
@@ -0,0 +1,15 @@
+clear
+//Given
+I=0.5
+R=100
+t=30
+a=4.2
+m=200                      //g
+w=10                      //g
+
+//Calculation
+H=I**2*R*t*60/a
+A=H/(m+w)
+
+//Result
+printf("\n The rise of temperature is %0.2f  degree C",A)
diff --git a/3769/CH7/EX7.2/Ex7_2.sce b/3769/CH7/EX7.2/Ex7_2.sce
new file mode 100644
index 000000000..c17b48f8d
--- /dev/null
+++ b/3769/CH7/EX7.2/Ex7_2.sce
@@ -0,0 +1,13 @@
+clear
+//Given
+V=230                //v
+P=100
+t=20*60
+V1=115                   //V
+
+//Calculation
+R=V**2/P
+E=(V1**2*t)/R
+
+//Result
+printf("\n Heat and light energy is %0.3f  J", E)
diff --git a/3769/CH7/EX7.20/Ex7_20.sce b/3769/CH7/EX7.20/Ex7_20.sce
new file mode 100644
index 000000000..95e038fa2
--- /dev/null
+++ b/3769/CH7/EX7.20/Ex7_20.sce
@@ -0,0 +1,17 @@
+clear
+//Given
+c=4.2                           //KJ/Kg/C
+m=0.2                           //Kg
+a=90
+b=20
+t=30
+V=230
+
+//calculation
+d=a-b
+H=c*m*d
+P=H/t
+I=P/V
+
+//Result
+printf("\n The value of current is %0.2f  A",I*10**3)
diff --git a/3769/CH7/EX7.3/Ex7_3.sce b/3769/CH7/EX7.3/Ex7_3.sce
new file mode 100644
index 000000000..21f5a3e5b
--- /dev/null
+++ b/3769/CH7/EX7.3/Ex7_3.sce
@@ -0,0 +1,14 @@
+clear
+//Given
+P=500             //W
+V=200.0              //V
+V1=240
+
+//Calculation
+I=P/V
+R=V1-V
+R1=R/I
+
+//Result
+printf("\n The value of R= %0.3f  ohm",R1)
+printf("\n Current in a circuit is %0.3f  A",I)
diff --git a/3769/CH7/EX7.4/Ex7_4.sce b/3769/CH7/EX7.4/Ex7_4.sce
new file mode 100644
index 000000000..600dae6fd
--- /dev/null
+++ b/3769/CH7/EX7.4/Ex7_4.sce
@@ -0,0 +1,12 @@
+clear
+//Given
+P1=100.0                     //W
+P=1100.0                      //W
+V=250
+
+//Calculation
+P2=P-P1
+R=V**2/P2
+
+//Result
+printf("\n The value of unknown resistance is %0.3f  ohm", R)
diff --git a/3769/CH7/EX7.7/Ex7_7.sce b/3769/CH7/EX7.7/Ex7_7.sce
new file mode 100644
index 000000000..13ee9d50c
--- /dev/null
+++ b/3769/CH7/EX7.7/Ex7_7.sce
@@ -0,0 +1,18 @@
+clear
+//Given
+m=1
+c=1
+a=100                  //W
+b=15
+t=7.5                   //second
+P=1                     //KW
+C=860                     //Kcal
+
+//Calculation
+A=m*c*(a-b)
+B=P*t/60.0
+D=B*C
+n=A*a/D
+
+//Result
+printf("\n Efficiency of the kettle is %0.1f  percentage",n)
diff --git a/3769/CH7/EX7.9/Ex7_9.sce b/3769/CH7/EX7.9/Ex7_9.sce
new file mode 100644
index 000000000..85d85cd57
--- /dev/null
+++ b/3769/CH7/EX7.9/Ex7_9.sce
@@ -0,0 +1,12 @@
+clear
+//Given
+H1=10
+a=5.0
+b=4.2
+
+//Calculation
+I1=(H1*b)/(a*4)
+A=I1*4/b
+
+//Result
+printf("\n Heat generated in 4 ohm resistor is %0.3f  cal/sec", A)