A) \[\frac{2VR}{4{{R}_{0}}+R}\]
B) \[\frac{4VR}{2{{R}_{0}}+R}\]
C) \[\frac{2VR}{{{R}_{0}}+4R}\]
D) \[\frac{4V{{R}_{0}}}{{{R}_{0}}+2R}\]
Correct Answer: C
Solution :
The total current of the circuits \[i=\frac{V}{\frac{{{R}_{0}}}{2}+2R}\] [\[\because \,i=\frac{V}{R}\]] \[\therefore \] The potential across the resistance R is \[V=i\,R\] \[=\frac{V}{\frac{{{R}_{0}}}{2}+2R}R=\frac{2VR}{{{R}_{0}}+4R}\]
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