Figure shows a solid conducting sphere of radius 1 m , enclosed by a metallic shell of radius 3 ,m s

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2. Electric Potential and Capacitance

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Figure shows a solid conducting sphere of radius $1 m$, enclosed by a metallic shell of radius $3 \,m$ such that their centres coincide. If outer shell is given a charge of $6 \,\mu C$ and inner sphere is earthed, find magnitude charge on the surface of inner shell is ............. $\mu C$

A

$1$

B

$-2$

C

$4$

D

$6$

Solution

(b)

$V=\frac{k q}{1}+\frac{k 6}{3}=0$

$q=-2 \,\mu C$

Standard 12

Physics

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