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Define electric flux. Is it a scalar or ...

Define electric flux. Is it a scalar or a vector quantity?
A point charge q is at a distance of d/2 directly above the centre of a square of side , as shown in the figure .Use Gauss, law to obtain the expression for the electric flux through the square.

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Electric flux through a given surface is defined as the dot product of electric field and area vector over than surface
Altermatively `phi =int_4oversetto Ed oversetto S `
Also accept
Electric flux. Through a surface equals the surface integral of the electric field over that surface It is a scalar quantity
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Contructing a cube of side.d. so that charge .q. gets placed within of this cube ( Gaussian surface ) Accroding to Gauss .s law the Electric flux.
`phi =("Charge enclosed ")/( in _0) `
This is the total flux through all the six faces of the cube. Hence electric flux through the square.
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