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Two concentric conducting sphere are of radii \mathrm{r_1} and \mathrm{r_2}. The outer sphere is given a charge \mathrm{q}. The charge \mathrm{q^{\prime}} on the inner sphere will be

Option: 1

\mathrm{q}


Option: 2

\mathrm{-q}


Option: 3

\mathrm{-q\ \frac{r_{1}}{r_{2}}}


Option: 4

Zero 


Answers (1)

best_answer


\mathrm{\begin{gathered} \mathrm{v}=\mathrm{\frac{k q^{\prime}}{r_1}+\frac{k q}{r_2}=0} \\ \mathrm{\frac{k q^{\prime}}{r_1}=-\frac{k q}{r_2}} \end{gathered}}
\mathrm{q^{\prime}=-q \frac{r_1}{r_2}}

Posted by

Irshad Anwar

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