Hello Kapil,

The SI unit of electric flux is volt meter (V·m) or newton meter squared per coulomb (N·m²/C) . It represents the total electric field passing through a given surface. Mathematically, electric flux (Φ) is given by Φ = E · A · cosθ , where E is the electric field, A is the area, and θ is the angle between the field and the normal to the surface.

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The SI unit of electric flux is the volt meter (V·m) or newton meter squared per coulomb (N·m²/C).

Mathematically, electric flux (Φ) is given by:

Φ = E .A.cos.I²

is the electric field (N/C),

is the area (m²),

is the angle between the electric field and the surface normal.

Hello There,

In electromagnetism,  the electric flux is used to calculate Electric field that passes through a given surface. It is used to describe the flow of electric field lines through the surface.

SI unit of electric flux is Volt-meter(V.m) or equivalentiy, the Newton-meter squared per Coulomb. Nevertheless, the most expressed in terms of the Weber(Wb), which is derived unit of electric flux.

So, the SI unit of Electric flux is prefered as Weber (Wb).

Hope this will help.