As shown in the figure, a point charge $Q$ is placed at the centre of conducting spherical shell of inner radius $a$ and outer radius $b$. The electric field due to charge $\mathrm{Q}$ in three different regions $\mathrm{I}, \mathrm{II}$ and $\mathrm{III}$ is given by: $(\mathrm{I}: r < a, \mathrm{II}: a < r < b$, III: $r>b$ )

Question

As shown in the figure, a point charge $Q$ is placed at the centre of conducting spherical shell of inner radius $a$ and outer radius $b$. The electric field due to charge $\mathrm{Q}$ in three different regions $\mathrm{I}, \mathrm{II}$ and $\mathrm{III}$ is given by:

$(\mathrm{I}: r < a, \mathrm{II}: a < r < b$, III: $r>b$ )

$E_I=0, E_{I I}=0, E_{I I I} \neq 0$

$E_I \neq 0, E_{I I}=0, E_{III}=0$

$E_I \neq 0, E_{I I}=0, E_{III} \neq 0$

$E_I=0, E_{I I}=0, E_{I I I}=0$

Solution

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