A) \[\frac{1}{10}\,th of initial\]
B) \[\frac{1}{13}\,th of initial\]
C) remain same
D) None of these
Correct Answer: B
Solution :
Initial condition When shunt of \[4\,\Omega \] is used, \[\frac{I}{5}\times G=\frac{4}{5}\,I\times 4\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,G=16\,\,\Omega \] When additional shunt of \[2\,\Omega \] is attached, \[I'\times 16=(I-I')\frac{4}{3}\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,12\,I'\,\times \,\,I\,\,-\,\,I'\] \[\Rightarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,I'=\frac{I}{13}\] It will reduce to \[\frac{1}{13}\] of the initial value.You need to login to perform this action.
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