1 files changed, 18 insertions, 0 deletions
diff --git a/620/CH12/EX12.5/example12_5.sce b/620/CH12/EX12.5/example12_5.sce
new file mode 100644
index 000000000..fa4dc5478
--- /dev/null
+++ b/620/CH12/EX12.5/example12_5.sce
@@ -0,0 +1,18 @@
+r1=1.2;
+v=1;
+disp("Part a");
+i1=v/r1;
+disp("the actual current (in mA) in the cicuit is"); disp(i1);
+disp("Part b");
+r2=1;
+i2=v/(r1+r2);
+disp("the inication of the meter (in mA) is"); disp(i2);
+disp("Part c");
+r3=0.1;
+i3=v/(r1+r3);
+disp("the indication of the meter (in mA) is"); disp(i3);
+disp("It is evident that the higher range (10 mA) with its much lower resistance (100 Ω) has reduced loading error compaared with the 1 kΩ , 1 mA range meter . However , the 0.77 mA will cause such a mall deflection on the 10 mA range that it will be difficult to read accurately.");
+disp("FSD error = 0.3 mA");
+disp("thus the 10 mA ammeter could indicate anything between 0.47 mA to 1.07 mA . On the 1 mA range");
+disp("FSD error =0.03 mA");
+disp("Thus the 1 mA ammeter could indicate anything between 0.42 mA to 0.48 mA . The range of values on the 10 mA scale includes the valuesof 0.77 mA and 0.83 mA whereas the 1 mA scale could never read higher than 0.48 mA . Put another way ,on the 10 mA range the readings could be from 43 % low to29 % high compared with the true value of 0.83 mA . On the 1 mA range , the readings could be from 42 %low to 49 % low compared with the true value of 0.83 mA");
+\ No newline at end of file