**Contents**show

The area vector of a part of a closed surface is defined to point from the inside of the closed space to the outside. This rule gives a unique direction. Since ˆn is a unit normal to a surface, it has two possible directions at every point on that surface (Figure 6.2. 1a).

## What is meant by area vector?

: **the vector of a plane surface whose magnitude is the area of the figure and whose direction is that of a perpendicular to the plane of the figure**.

## Why do we take area as vector in electric flux?

More formally, it is the dot product of a vector field (in this chapter, the electric field) with an area. … **The larger the area, the more field lines go through it** and, hence, the greater the flux; similarly, the stronger the electric field is (represented by a greater density of lines), the greater the flux.

## What is area or normal vector?

In 3-dimensional geometry and vector calculus, an area vector is a vector combining an area measure with a direction, usually **a surface normal**.

## Is area A scalar or vector?

The magnitude of area is a **scalar quantity**.

## 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.

## How do you find the area of a vector?

Area can be represented as a vector quantity because **it has both magnitude and direction**. The direction of area vector of a surface is along the perpendicular to the surface.

## What is unit direction vector?

A unit vector is **a vector of length 1**, sometimes also called a direction vector (Jeffreys and Jeffreys 1988). The unit vector having the same direction as a given (nonzero) vector is defined by. where denotes the norm of , is the unit vector in the same direction as the (finite) vector .

## What is electric flux example?

Flux Definition Physics

We define the Electric Flux as the **rate of flow of the electric field through a given area** and it varies directly with the number of electric field lines going via a virtual surface. Switch on the mosquito repellent, you smell the fragrance after some time.

## Where is electric flux used?

In electromagnetism, electric flux is **the measure of the electric field through a given surface**, although an electric field in itself cannot flow. It is a way of describing the electric field strength at any distance from the charge causing the field.