A) \[\frac{{{R}_{2}}-{{R}_{1}}}{{{R}_{1}}{{R}_{2}}}\]
B) \[\frac{{{R}_{2}}+{{R}_{1}}}{{{R}_{1}}{{R}_{2}}}\]
C) \[\frac{{{R}_{1}}{{R}_{2}}}{{{R}_{1}}+{{R}_{2}}}\]
D) \[\frac{{{R}_{1}}{{R}_{2}}}{{{R}_{2}}-{{R}_{1}}}\]
Correct Answer: D
Solution :
Capacitance of the given assembly \[C=4\pi {{\varepsilon }_{0}}\,\left( \frac{{{R}_{1}}{{R}_{2}}}{{{R}_{2}}-{{R}_{1}}} \right)\] Þ \[C\propto \frac{{{R}_{1}}{{R}_{2}}}{({{R}_{2}}-{{R}_{1}})}\]You need to login to perform this action.
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