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The electric field is a region (relative...

The electric field is a region (relative permittivity = 1) varies with distance "r" from origin according to relation `E = Ar^2hatr`, where A is a positive constant. The volume charge density in the region is proportional to

A

r

B

`r^2`

C

`1//r`

D

`1//r^2`

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The correct Answer is:
A
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