A) \[\frac{R}{{{n}^{4}}}\]
B) \[\frac{R}{{{n}^{2}}}\]
C) \[\frac{R}{n}\]
D) nR
Correct Answer: A
Solution :
\[\frac{{{R}_{1}}}{{{R}_{2}}}={{\left( \frac{{{r}_{2}}}{{{r}_{1}}} \right)}^{4}}\Rightarrow \frac{R}{{{R}_{2}}}={{\left( \frac{nr}{r} \right)}^{4}}\Rightarrow {{R}_{2}}=\frac{R}{{{n}^{4}}}\].
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