MCQ
Output $W$ is given by


- A$(\overline {X.Y} )\, + \,Z$
- B$(\overline {X+Y} )\, . \,Z$
- C$(\overline X .\overline Y )\,.\,Z$
- ✓Both $(B)$ and $(C)$

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$\rho (r)\, = \,{\rho _0}\left( {1 - \frac{r}{R}} \right)$ for $r < R$
$\rho (r)\,=\,0$ for $r\, \ge \,R$
Where $r$ is the distance from the centre of the charge distribution $\rho _0$ is a constant. The electric field at an internal point $(r < R)$ is
