Consider a uniform spherical charge distribution of radius $${{R}_{1}}$$ centered at the origin O. In this distribution, a spherical cavity of radius $${{R}_{2}}$$, centered at P with distance $$OP=a={{R}_{1}}-{{R}_{2}}$$(see figure) is made. If the electric field inside the cavity at position $$\vec{r}$$is $$\vec{E}\overrightarrow{(r)}$$, then the correct statement is

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$$\vec{E}$$ is uniform, its magnitude is independent of $${{R}_{2}}$$but its direction depends on $$\vec{r}$$

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$$\vec{E}$$ is uniform, its magnitude depends on $${{R}_{2}}$$and its direction depends on $$\vec{r}$$

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$$\vec{E}$$ is uniform, its magnitude depends of a but its direction depends on $$\vec{a}$$

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$$\vec{E}$$ is uniform and both its magnitude and direction depends on $$\vec{a}$$

1.	Consider a uniform spherical charge distribution of radius \[{{R}_{1}}\] centered at the origin O. In this distribution, a spherical cavity of radius \[{{R}_{2}}\], centered at P with distance \[OP=a={{R}_{1}}-{{R}_{2}}\](see figure) is made. If the electric field inside the cavity at position \[\vec{r}\]is \[\vec{E}\overrightarrow{(r)}\], then the correct statement is
A.	\[\vec{E}\] is uniform, its magnitude is independent of \[{{R}_{2}}\]but its direction depends on \[\vec{r}\]
B.	\[\vec{E}\] is uniform, its magnitude depends on \[{{R}_{2}}\]and its direction depends on \[\vec{r}\]
C.	\[\vec{E}\] is uniform, its magnitude depends of a but its direction depends on \[\vec{a}\]
D.	\[\vec{E}\] is uniform and both its magnitude and direction depends on \[\vec{a}\]
Answer» E.

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