A cubical region of side a has its centre at the origin. It encloses three fixed point charges, \( -\mathrm{q} \) at \( \left(0,-\frac{\mathrm{a}}{4}, 0\right) \), \( +3 \mathrm{q} \) at \( (0,0,0) \) and \( -\mathrm{q} \) at \( \left(0,+\frac{\mathrm{a}}{4}, 0\right) \). Choose the correct option(s).
(A) The net electric flux crossing the plane \( x=+\frac{a}{2} \) is
\( P \)
W - equal to the net electric flux crossing the plane \( x=-\frac{a}{2} \)
- (B) The net electric flux crossing the plane \( y=+\frac{a}{2} \) is more than the net electric flux crossing the plane \( \mathrm{y}=-\frac{\mathrm{a}}{2} \)
(C) The net electric flux crossing the entire region is \( \frac{\mathrm{q}}{\varepsilon_{0}} \)
- (D) The net electric flux crossing the plane \( z=+\frac{a}{2} \) is equal to the net electric flux crossing the - plane \( x=+\frac{a}{2} \)
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