The electric field in a certain region is acting radially outward and is given by E = Ar. A charge contained in a sphere of radius 'a' centred at the origin of the field, will be given by
$4\pi {\varepsilon _0}A{a^3}$
${\varepsilon _0}A{a^3}$
$4\pi {\varepsilon _0}A{a^2}$
$A{\varepsilon _0}{a^2}$
Solution
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