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Diffstat (limited to '2459/CH25/EX25.2/Ex25_2.sce')
| -rw-r--r-- | 2459/CH25/EX25.2/Ex25_2.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/2459/CH25/EX25.2/Ex25_2.sce b/2459/CH25/EX25.2/Ex25_2.sce new file mode 100644 index 000000000..449d9ac2f --- /dev/null +++ b/2459/CH25/EX25.2/Ex25_2.sce @@ -0,0 +1,16 @@ +//chapter25
+//example25.2
+//page543
+
+S=1000 // ohm per volt
+V=50 // V
+R=50d3 // ohm
+
+R_meter=S*V
+
+R_equi=R*R_meter/(R+R_meter) //equivalent resistance of meter and given resistance across which meter is connected
+
+printf("ratio of circuit resistance before and after connecting multimeter = %.3f \n",R/R_equi)
+printf("Thus equivalent resistance is reduced to half. So current drawn is double \n")
+printf("Thus multimeter will give highly incorrect reading \n \n")
+printf("As a rule, multimeter resistance should be 100 times the resistance across \nwhich voltage is to be measured \n")
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