The total flux through the faces of the cube with side of length \( a \) if a charge \( 2 q \) i...

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The total flux through the faces of the cube with side of length \( a \) if a charge \( 2 q \) is placed at corner \( A \) of the cube is:
(A) \( \frac{q}{8 \varepsilon_{0}} \)
(B) \( \frac{q}{2 \varepsilon_{0}} \)
(C) \( \frac{q}{4 \varepsilon_{0}} \)
(D) \( \frac{2 q}{\varepsilon_{0}} \)
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