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-rw-r--r--620/CH8/EX8.1/example8_1.sce9
-rw-r--r--620/CH8/EX8.1/example8_1.txtbin0 -> 338 bytes
-rw-r--r--620/CH8/EX8.2/example8_2.sce12
-rw-r--r--620/CH8/EX8.2/example8_2.txt13
-rw-r--r--620/CH8/EX8.3/example8_3.sce16
-rw-r--r--620/CH8/EX8.3/example8_3.txtbin0 -> 500 bytes
-rw-r--r--620/CH8/EX8.4/example8_4.sce2
-rw-r--r--620/CH8/EX8.4/example8_4.txtbin0 -> 248 bytes
8 files changed, 52 insertions, 0 deletions
diff --git a/620/CH8/EX8.1/example8_1.sce b/620/CH8/EX8.1/example8_1.sce
new file mode 100644
index 000000000..11e1d89bd
--- /dev/null
+++ b/620/CH8/EX8.1/example8_1.sce
@@ -0,0 +1,9 @@
+a=3;
+p1=0.84;
+p2=0.96;
+disp("Part a");
+c1=a*p1;
+disp("Capacity retention (in Ah) after 20 months at 20 °C is"); disp(c1);
+disp("Part b");
+c2=a*p2;
+disp("Capacity retention (in Ah) after 20 months at 45 °C is"); disp(c2); \ No newline at end of file
diff --git a/620/CH8/EX8.1/example8_1.txt b/620/CH8/EX8.1/example8_1.txt
new file mode 100644
index 000000000..997553c9b
--- /dev/null
+++ b/620/CH8/EX8.1/example8_1.txt
Binary files differ
diff --git a/620/CH8/EX8.2/example8_2.sce b/620/CH8/EX8.2/example8_2.sce
new file mode 100644
index 000000000..710e5d7dc
--- /dev/null
+++ b/620/CH8/EX8.2/example8_2.sce
@@ -0,0 +1,12 @@
+a=3;
+p1=0.84;
+p2=0.96;
+i=50*10^(-3);
+disp("Part a");
+c1=a*p1;
+t1=c1/i;
+disp("the length of time (in h) for which the cell can deliver current is"); disp(t1);
+disp("Part b");
+c2=a*p2;
+t2=c2/i;
+disp("the length of time (in h) for which the cell can deliver current is"); disp(t2);
diff --git a/620/CH8/EX8.2/example8_2.txt b/620/CH8/EX8.2/example8_2.txt
new file mode 100644
index 000000000..4fc8db001
--- /dev/null
+++ b/620/CH8/EX8.2/example8_2.txt
@@ -0,0 +1,13 @@
+
+ Part a
+
+ the length of time (in h) for which the cell can deliver current is
+
+ 50.4
+
+ Part b
+
+ the length of time (in h) for which the cell can deliver current is
+
+ 57.6
+ \ No newline at end of file
diff --git a/620/CH8/EX8.3/example8_3.sce b/620/CH8/EX8.3/example8_3.sce
new file mode 100644
index 000000000..a5aa67d68
--- /dev/null
+++ b/620/CH8/EX8.3/example8_3.sce
@@ -0,0 +1,16 @@
+disp("Part a");
+p=0.2;
+v_1=1.5;
+v1_1=p*v_1;
+v2_1=v_1-v1_1;
+disp("the time taken to reduce the terminal voltage by 20 % is 5 h");
+disp("Part b");
+v_2=1.2;
+v1_2=p*v_2;
+v2_2=v_2-v1_2;
+disp("the time taken to reduce the terminal voltage by 20 % is 10 h");
+disp("Part c");
+v_3=1.4;
+v1_3=p*v_3;
+v2_3=v_3-v1_3;
+disp("the time taken to reduce the terminal voltage by 20 % is 75 h") \ No newline at end of file
diff --git a/620/CH8/EX8.3/example8_3.txt b/620/CH8/EX8.3/example8_3.txt
new file mode 100644
index 000000000..320b8fde0
--- /dev/null
+++ b/620/CH8/EX8.3/example8_3.txt
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diff --git a/620/CH8/EX8.4/example8_4.sce b/620/CH8/EX8.4/example8_4.sce
new file mode 100644
index 000000000..c3128a33a
--- /dev/null
+++ b/620/CH8/EX8.4/example8_4.sce
@@ -0,0 +1,2 @@
+disp("maximum charge current is 2 A and maximum charge time at this rate is 30 min");.................//capacity is 2Ah and a charge rate of 2 C is required to fully charge in 27 min
+disp("trickle charge rate is 0.25 A"); \ No newline at end of file
diff --git a/620/CH8/EX8.4/example8_4.txt b/620/CH8/EX8.4/example8_4.txt
new file mode 100644
index 000000000..863638d29
--- /dev/null
+++ b/620/CH8/EX8.4/example8_4.txt
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