# Thread: Fsc 2nd Year chapter No :1 | ELECTROSTATICS

1. ## Fsc 2nd Year chapter No :1 | ELECTROSTATICS

Fsc 2nd Year chapter No :1 | ELECTROSTATICS

Topic No :5

ELECTRIC FLUX
GENERAL MEANING OF ELECTRIC FLUX

In common language flux refers to the flow or stream of any thing from one point to another point. In the similar way electric flux is the total number of lines of force passing through a surface. PHYSICAL MEANING OF ELECTRIC FLUX

In physical sense, electric flux is defined as:

"The total number of lines of force passing through the unit area of a surface held perpendicularly."
MATHEMATICAL MEANING OF ELECTRIC FLUX

Mathematically the electric flux is defined as: "The dot product of electric field intensity (E) and the vector area (DA) is called electric flux."
Where q is the angle between E and DA

MAXIMUM FLUX

If the surface is placed perpendicular to the electric field then maximum electric lines of force will pass through the surface. Consequently maximum electric flux will pass through the surface.

ZERO FLUX
If the surface is placed parallel to the electric field then no electric lines of force will pass through the surface. Consequently no electric flux will pass through the surface.
Flux is a scalar quantity . UNIT OF FLUX

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