Question 306: Electrostatics & Capacitance

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:
$(\mathrm{I}: r b$ )
![](https://app-content.cdn.examgoal.net/fly/@width/image/1ldqyg78j/827c5524-860b-46b3-a4b5-636ae6954d81/87b23f30-a517-11ed-868c-9b3df14ba4de/file-1ldqyg78k.png?format=png)

Accepted Answer

${E_I} 
e 0$ (inside region)
${E_{II}} = 0$ (conducting region)
${E_{III}} 
e 0$
$ = {{KQ} \over {{r^2}}}\,\,\,(r > b)$

Answer

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

Answer

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

Answer

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

Answer

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

Electrostatics & Capacitance

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