A) \[{{R}_{1}}\] is two times \[{{R}_{2}}\]
B) \[{{R}_{2}}\] is two times \[{{R}_{1}}\]
C) \[{{R}_{2}}\] is four times \[{{R}_{1}}\]
D) \[{{R}_{1}}\] is four times \[{{R}_{2}}\]
Correct Answer: B
Solution :
\[P\propto \frac{1}{R}\Rightarrow \frac{{{P}_{1}}}{{{P}_{2}}}=\frac{{{R}_{2}}}{{{R}_{1}}}\] \[\Rightarrow \frac{200}{100}=\frac{{{R}_{2}}}{{{R}_{1}}}\Rightarrow {{R}_{2}}=2{{R}_{1}}\]
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