What is the flux through a cube of side ’ a ’ if a point charge of q is at one of its corner ?
(a) \( \dfrac{2q}{\varepsilon_0} \)
(b) \( \dfrac{q}{8\varepsilon_0} \)
(c) \( \dfrac{q}{\varepsilon_0} \)
(d) \( \dfrac{q}{2\varepsilon_0} \)
Answer : (b) \( \dfrac{q}{8\varepsilon_0} \)
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