A) \[\frac{U}{5}\]
B) \[U\]
C) 5U
D) 25U
Correct Answer: D
Solution :
\[U\propto {{x}^{2}}\] Þ \[\frac{{{U}_{2}}}{{{U}_{1}}}={{\left( \frac{{{x}_{2}}}{{{x}_{1}}} \right)}^{2}}={{\left( \frac{0.1}{0.02} \right)}^{2}}=25\]\\[{{U}_{2}}=25U\]
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