Three infinitely long charge sheets are placed as shown in figure. The electric field at point $P$ is
Three infinitely long charge sheets are placed as shown in figure. The electric field at point $P$ is
- [IIT 2005]
- A
$\frac{{2\sigma }}{{{\varepsilon _o}}}$$\hat k$
- B
$ - \frac{{2\sigma }}{{{\varepsilon _o}}}$$\hat k$
- C
$\frac{{4\sigma }}{{{\varepsilon _o}}}$$\hat k$
- D
$ - \frac{{4\sigma }}{{{\varepsilon _o}}}$$\hat k$
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- [KVPY 2011]
Graphical variation of electric field due to a uniformly charged insulating solid sphere of radius $R$, with distance $r$ from the centre $O$ is represented by:
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- [JEE MAIN 2023]
Let $\rho (r)\, = \frac{Q}{{\pi {R^4}}}\,r$ be the volume charge density distribution for a solid sphere of radius $R$ and total charge $Q$. For a point $'p'$ inside the sphere at distance $r_1$ from the centre of the sphere, the magnitude of electric field is
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