A) \[\text{54 }esu\]
B) \[\frac{1}{4}\text{ }esu\]
C) \[\text{30 }esu\]
D) \[36\text{ }esu\]
Correct Answer: D
Solution :
The arrangement behaves as a spherical capacitor having capacitance in CGS (i.e., in esu) system of units. \[C=\frac{ab}{b-a}=\frac{4\times 6}{6-4}=12\,esu\] Also \[C=\frac{\text{charge}}{potential\,\,difference}=\frac{q}{3}\] \[\Rightarrow \] \[q=3C=3\times 12=36\,esu\]You need to login to perform this action.
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