A) 5.125%
B) 2%
C) 10.125%
D) 7%
Correct Answer: C
Solution :
\[{{R}_{P}}=\frac{{{R}_{1}}{{R}_{2}}}{{{R}_{1}}+{{R}_{2}}}\] \[\frac{\Delta {{R}_{P}}}{{{R}_{P}}}=\frac{\Delta {{R}_{1}}}{{{R}_{1}}}+\frac{\Delta {{R}_{2}}}{{{R}_{2}}}+\frac{\Delta ({{R}_{1}}+{{R}_{2}})}{{{R}_{1}}+{{R}_{2}}}\] \[\frac{\Delta {{R}_{P}}}{{{R}_{P}}}=\frac{0.3}{6}+\frac{0.2}{10}+\frac{0.3+0.2}{1.16}\] \[=\frac{\Delta {{R}_{P}}}{{{R}_{P}}}\times 100\] \[=10.125%\]You need to login to perform this action.
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