A uniform electric field $\to E = a ˆ i + b ˆ j + c ˆ k$
intersects a surface of area $A$ . What is the flux through this area, if surface lies in
$x y$ plane?

(\sqrt{a^{2} + b^{2} + c^{2}}) A

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(\sqrt{b^{2} + c^{2}}) A

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c A

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(\sqrt{a^{2} + b^{2}}) A

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Solution

The correct option is C $c A$
$ϕ_{e l e c t r i c} = \to E . \to A = (a^i + b^j + c^k) . A^k = c A$

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