The electric field in a certain region i...

The electric field in a certain region is acting radially outwards and is given by `E=Ar. A` charge contained in a sphere of radius `'a'` centred at the origin of the field, will given by

`A epsilon_(0) a^(2)`

`4piepsilon_(0) Aa^(3)`

`epsilon_(0) Aa^(3)`

`4piepsilon_(0) Aa^(2)`

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