The total electric flux through a closed spherical surface of radius $r$ enclosing an electric dipole of dipole moment $2aq$ is (Give $\varepsilon_0=$ permittivity of free space)
- Azero
- B$\frac{q}{\varepsilon_0}$
- C$\frac{2q}{\varepsilon_0}$
- D$\frac{8\pi r^2 q}{\varepsilon_0}$
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