# Why is electric flux a dot product?

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Because flux measures the “flow” through an area, the area vector must no be perpendicular to the flow and this is why flux is found with the dot product.

## Is electric flux a dot product?

The electric flux that passes through this small area dφ, (also called a differential of flux), is defined as a dot product of the magnitude of the electric field E and the magnitude of the vector area dA, times the angle between these two vectors θ.

## Is magnetic flux a dot product or cross product?

Magnetic flux is a scalar quantity because it’s a dot-product of two vectors: This dot product defines a component of one vector along the direction of another.

## Why is electric flux a scalar quantity?

Electric flux is a scalar quantity, because it’s the dot product of two vector quantities, electric field and the perpendicular differential area.

## Is electric flux calculated as a cross product?

The electric flux is calculated as a cross product The total electric flux for three point charges with +3Q, +4Q, and -6Q has a negative value. The total electric flux through a closed surface depends on all charges within and outside the surface.

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## Why is electric flux important?

So we can obviously say electric flux has a physical significance.It measures the total charge enclosed inside any arbitrary surface. The more the electric flux is the more charge must be there inside the surface to produce the needed number of electric field lines.

## What is an electric flux in physics?

electric flux, property of an electric field that may be thought of as the number of electric lines of force (or electric field lines) that intersect a given area. Electric field lines are considered to originate on positive electric charges and to terminate on negative charges.

## Is electric flux scalar or vector?

It is a dot product of electric field vector (vector E) and area vector (vector ds). As it is a dot product. So, electric flux is a scalar quantity.

## Is electric flux density scalar or vector?

Flux density is also a scalar quantity, which is a large number of magnetic field lines crossing per unit volume area, the largest is flux density. The Vector is represented by an arrow mark on the symbol.

## Is flux a vector?

For transport phenomena, flux is a vector quantity, describing the magnitude and direction of the flow of a substance or property. In vector calculus flux is a scalar quantity, defined as the surface integral of the perpendicular component of a vector field over a surface.

## Why is flux a scalar quantity and the dot product of magnetic field and area?

As we are using dot products, the magnetic flux is a scalar quantity. … When the magnetic field is along the area of the closed surface, the magnetic flux is 0. It happens because the angle between the area vector and the magnetic field vector is 90°.

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## Why is Electric flux an area vector?

Through the bottom face of the cube, Φ=→E0⋅→A=−E0A, because the area vector here points downward. Along the other four sides, the direction of the area vector is perpendicular to the direction of the electric field. Therefore, the scalar product of the electric field with the area vector is zero, giving zero flux.

## Is Electric flux a scalar or a vector quantity write Electric flux on a scalar product of two vectors?

since, electric field is a vector quantity and the area is also a vector quantity, the dot product of two vectors is always a scalar quantity. Hence, Electric flux is a scalar quantity not a vector quantity.