﻿ Electric Flux | Electric Charges and Fields - Zigya

### Book Store

Currently only available for.
`CBSE`

### Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
`Class 10` `Class 12`

# Electric Charges and Fields

Quickly browse through questions and notes on related topics. You can also download and read this topic offline.

## Electric Flux

Electric flux, the property of an electric field. It can be also defined as the rate of flow of the electric field through a given area.

Electric flux is proportional to the number of electric field lines.

Conditions:

1. If the electric field is uniform, the electric flux passing through a surface of vector area S is
ΦE =E⋅S =ES cos θ
where E is the magnitude of the electric field.
S is the area of the surface
θ is the angle between the electric field lines and normal to S.
2. For non-uniform electric field, the electric flux dΦE.
3. through a small surface, area dS is given by
E =E⋅dS
(the electric field, E, multiplied by the component of area perpendicular to the field).