When do we say that electric flux is either positive or negative?

If a net charge is contained inside a closed surface, the total flux through the surface is proportional to the enclosed charge, positive if it is positive, negative if it is negative.

Can an electric flux be negative?

Yes, electric flux can be a negative number. When electric lines emerge out of surface, the electric flux is positive and when those lines enter into a surface, the electric flux in negative.

Why is outward flux positive?

Typically in this case we define “outward” flux to be positive, in which case the total electric flux through the surface will be a positive number since the electric field lines point out of a positively charged particle.

What is positive flux and negative flux?

Remember our convention for flux orientation: positive means flux is leaving, negative means flux is entering. In this example, water is falling downward, or entering the tube. This means the top surface has negative flux (it appears to be siphoning up water).

What do you mean by positive flux and negative flux?

Positive flux means flux is leaving the hose the hose is a source of flux. Negative flux is like water entering a sink; it is a sink of flux. So positive flux = negative = entering.

When electric flux will be positive?

If more lines are leaving than entering the flux is positive and if more lines are entering than leaving the flux is negative. Net Electric Flux Through a Closed Surface Page 4 4 Recall: The number of electric field lines entering or leaving a charge is directly proportional to the magnitude of the charge.

Is flux always positive?

Flux: The flow across a surface. When the field vectors are going the same direction as the vectors normal to the surface, the flux is positive. When the field vectors are going the opposite direction as the vectors normal to the surface, the flux is negative.

What is meant by positive flux?

Flux is the rate of flow of the electric field through the given area. What is a positive flux? The flux is said to be positive when it leaves the closed surface. Flux depends on the surface size, the magnitude of the field and the angle between the surface and the magnetic field.

When will be the electric flux negative and when is it positive class 12?

When a net charge is enclosed within a closed surface, the overall flux through the surface is equal to the enclosed charge, positive if the charge is positive and negative if the charge is negative.

What is a positive flux?

When is the flux positive?

When the field vectors are going the same direction as the vectors normal to the surface, the flux is positive. When the field vectors are going the opposite direction as the vectors normal to the surface, the flux is negative.