A) \[5\ \mu C\]
B) \[10\mu C\]
C) \[15\mu C\]
D) \[20\mu C\]
Correct Answer: B
Solution :
Charge on smaller sphere = Total charge \[\left( \frac{{{r}_{1}}}{{{r}_{1}}+{{r}_{2}}} \right)=30\,\left( \frac{5}{5+10} \right)=10\mu C\]
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