initial commit / add all books

2 files changed, 50 insertions, 0 deletions

diff --git a/620/CH7/EX7.4/example7_4.sce b/620/CH7/EX7.4/example7_4.sce
new file mode 100644
index 000000000..124a3fcc7
--- /dev/null
+++ b/620/CH7/EX7.4/example7_4.sce
@@ -0,0 +1,50 @@
+v_1=10;

+v_2=30;

+r1=1;

+r2=2.2;

+r3=3.3;

+r4=4.7;

+r5=5.1;

+r6=6.8;

+disp("Part a");

+r_1=r1*r2/(r1+r2);

+r_2=1/(1/r4+1/r5+1/r6);

+r=r_1+r_2+r3;

+disp("the total circuit resistance (in kΩ) is"); disp(r);

+disp("Part b");

+v=v_2-v_1;

+i=v/r;

+disp("the total supply current (in mA) is"); disp(i);

+disp("Part c");

+i1=i*r2/(r1+r2);

+disp("current (in mA) through R1 is"); disp(i1);

+i2=i*r1/(r1+r2);

+disp("current (in mA) through R2 is"); disp(i2);

+disp("Part d");

+v2=i2*r2;

+disp("voltage drop (in V) across R2 is"); disp(v2);

+disp("Part e");

+v3=i*r3;

+disp("voltage drop (in V) across R3 is"); disp(v3);

+disp("Part f");

+v5=i*r_2;

+disp("voltage drop (in V) across R5 is"); disp(v5);

+disp("Part g");

+i4=v5/r4;

+disp("current (in mA) through R4 is"); disp(i4);

+i5=v5/r5;

+disp("current (in mA) through R5 is"); disp(i5);

+i6=v5/r6;

+disp("current (in mA) through R6 is"); disp(i6);

+disp("Part h");

+vba=v_2-v2;

+disp("Voltage (in V) of A w.r.t. B is"); disp(vba);

+disp("Part i");

+p2=v_2*i;

+disp("Power delivered (in mW) by V2 is"); disp(p2);

+disp("Part j");

+p=i^2*r;

+disp("Power dissipated (in mW) by all resistors is"); disp(p);

+disp("Part k");

+p1=v_1*i;

+disp("power delivered (in mW) in recharging V1 is"); disp(p1);
\ No newline at end of file
diff --git a/620/CH7/EX7.4/example7_4.txt b/620/CH7/EX7.4/example7_4.txt
new file mode 100644
index 000000000..68a977fbe
--- /dev/null
+++ b/620/CH7/EX7.4/example7_4.txt