**Electric Flux:**

Electric Flux is a measure of total electric field lines crossing a particular area.

we can simply define it as dot product of Electric field and Area vector. It is represented by Î¦ such that

Here ds is an area vector.

** ( NOTE :** The first equation in fig. represents dot product of two vectors and when we simply that equation we get the very next equation.)

**Electric flux depends on the cosine of angle between electric field and area vector. **

When E is along area vector i.e. Î¸ =0°, Flux is Maximum & Î¦ = E ds , and when E is perpendicular to the area vector i.e. Î¸ = 90°, Flux is Minimum & Î¦ = 0.

Electric Flux is a __Scalar quantity__.

__SI Unit__ : N m2 C-1

__Dimensional Formula__ : Your task ….Find and reply in comment ???

__Area Vector:__

In the concept of electric flux we consider area as a vector and consider its direction as perpendicular to the plane of the area going outside.

Here ds is a small area. And its direction is perpendicular to the plane of area ds.

Electric Flux Density :

Electric Flux Density is defined as the field lines produced across closed unit area.

Your task : ( Reply your answer in comment )

Q.1) If a body gives out 105 electrons every second, how much time is required to get a total charge of 1 C from it ?

Q.2) Two equal and opposite charges of 2 × 10-7 C are placed 1 mm apart. Find the magnitude and nature of force of interaction.

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## 1 Comments

Dimensional formula of electric flux is

ReplyDelete[ML^3T^-3A^-1]

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