10 files changed, 89 insertions, 0 deletions
diff --git a/620/CH22/EX22.1/example22_1.sce b/620/CH22/EX22.1/example22_1.sce
new file mode 100644
index 000000000..6e0995037
--- /dev/null
+++ b/620/CH22/EX22.1/example22_1.sce
@@ -0,0 +1,13 @@
+c=4*10^(-6);
+v1=16;
+v2=24;
+t=2*10^(-3);
+disp("Part a");
+rate=(v2-v1)/t;
+disp("the average rate of change of voltage (in V/s) is"); disp(rate);
+disp("Part b");
+i=c*rate;
+disp("the average current (in mA) into the capacitor is"); disp(i*10^3);
+disp("Part c");
+q=c*(v2-v1);
+disp("the increase in charge (in μC) on the capacitor is"); disp(q*10^6);
+\ No newline at end of file
diff --git a/620/CH22/EX22.1/example22_1.txt b/620/CH22/EX22.1/example22_1.txt
new file mode 100644
index 000000000..7b28e739b
--- /dev/null
+++ b/620/CH22/EX22.1/example22_1.txt
diff --git a/620/CH22/EX22.3/example22_3.sce b/620/CH22/EX22.3/example22_3.sce
new file mode 100644
index 000000000..5bebed9c0
--- /dev/null
+++ b/620/CH22/EX22.3/example22_3.sce
@@ -0,0 +1,11 @@
+r=10^3;
+c=10^(-6);
+v=10;
+disp("Part a");
+rate=v/(r*c);
+disp("the initial rate of rise of capacitor voltage (in V/s) is");disp(rate);
+disp("Part b");
+i=v/r;
+disp("initial charging current (in mA) is"); disp(i*10^3);
+disp("Part c");
+disp("final voltage (in V) is");disp(v);
+\ No newline at end of file
diff --git a/620/CH22/EX22.3/example22_3.txt b/620/CH22/EX22.3/example22_3.txt
new file mode 100644
index 000000000..16d122f61
--- /dev/null
+++ b/620/CH22/EX22.3/example22_3.txt
diff --git a/620/CH22/EX22.4/example22_4.sce b/620/CH22/EX22.4/example22_4.sce
new file mode 100644
index 000000000..182a79010
--- /dev/null
+++ b/620/CH22/EX22.4/example22_4.sce
@@ -0,0 +1,15 @@
+c=5*10^(-6);
+r=10*10^3;
+v=12;
+disp("Part a");
+t=r*c;
+disp("the time constant (in ms) of the circuit is"); disp(t*10^3);
+disp("Part b");
+rate=v/t;
+disp("initial rate of rise of capacitor voltage (in V/s) is"); disp(rate);
+disp("Part c");
+v1=0.63*v;
+disp("the capacitor voltage (in V) after one time constant is"); disp(v1);
+disp("Part d");
+t1=5*t;
+disp("time taken (in ms) to reach 12 V is"); disp(t1*10^3);
+\ No newline at end of file
diff --git a/620/CH22/EX22.4/example22_4.txt b/620/CH22/EX22.4/example22_4.txt
new file mode 100644
index 000000000..d7a275c8f
--- /dev/null
+++ b/620/CH22/EX22.4/example22_4.txt
diff --git a/620/CH22/EX22.5/example22_5.sce b/620/CH22/EX22.5/example22_5.sce
new file mode 100644
index 000000000..fd7f52d20
--- /dev/null
+++ b/620/CH22/EX22.5/example22_5.sce
@@ -0,0 +1,12 @@
+c=10*10^(-6);
+r=5*10^3;
+v=24;
+disp("Part a");
+t=r*c;
+disp("the time constan (in ms) of the circuit i; disp(t*10^3)");
+disp("Part b");
+rate=v/t;
+disp("the initial rate of rise of capacitor voltage (in V/s) is"); disp(rate);
+disp("Part c");
+t1=5*t;
+disp("time taken (in ms) to reach 24 V is"); disp(t1*10^3);
+\ No newline at end of file
diff --git a/620/CH22/EX22.5/example22_5.txt b/620/CH22/EX22.5/example22_5.txt
new file mode 100644
index 000000000..5c3d1170f
--- /dev/null
+++ b/620/CH22/EX22.5/example22_5.txt
@@ -0,0 +1,16 @@
+
+ Part a   
+ 
+ the time constan (in ms) of the circuit i; disp(t*10^3)   
+ 
+ Part b   
+ 
+ the initial rate of rise of capacitor voltage (in V/s) is   
+ 
+    480.  
+ 
+ Part c   
+ 
+ time taken (in ms) to reach 24 V is   
+ 
+    250.  
+\ No newline at end of file
diff --git a/620/CH22/EX22.6/example22_6.sce b/620/CH22/EX22.6/example22_6.sce
new file mode 100644
index 000000000..aedb74797
--- /dev/null
+++ b/620/CH22/EX22.6/example22_6.sce
@@ -0,0 +1,22 @@
+v=300;
+c=500*10^(-6);
+r1=4*10^3;
+r2=10;
+disp("Part a");
+t1=5*r1*c;
+disp("time taken (in s) to fully charge is"); disp(t1);
+disp("Part b");
+i1=v/r1;
+disp("the peak charging current (in mA) is"); disp(i1*10^3);
+disp("Part c");
+t2=5*r2*c;
+disp("time taken (n ms) to fully discharge is"); disp(t2*10^3);
+disp("Part d");
+i2=v/r2;
+disp("peak discharging current (in A) is"); disp(i2);
+disp("Part e");
+w=0.5*c*v^2;
+disp("energy stored (in J) is"); disp(w);
+disp("Part f");
+p=w/t2;
+disp("average power produced (in W) by the lamp is"); disp(p);
+\ No newline at end of file
diff --git a/620/CH22/EX22.6/example22_6.txt b/620/CH22/EX22.6/example22_6.txt
new file mode 100644
index 000000000..ec0d54052
--- /dev/null
+++ b/620/CH22/EX22.6/example22_6.txt