What is meant by negative flux explain with diagram?

The negative flux just equals in magnitude the positive flux, so that the net, or total, electric flux is zero. 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 isnegative.

Can there be negative flux?

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.

How do you know if a flux is negative?

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.

Why is incoming flux negative?

For example if area vector of outer surface of sphere is taken as positive, then for electric fields radially entering the sphere, flux is negative. This is because angle between area vector and electric field becomes 180⁰ and cosine of 180⁰ is negative.

What do you mean by positive and negative flux?

electric flux, property of an electric field that may be thought of as the number of electric lines of force (or electric field lines) that intersect a given area. Field lines directed into a closed surface are considered negative; those directed out of a closed surface are positive.

When electric flux is positive negative or zero?

Answer: Explanation: The negative flux just equals in magnitude the positive flux, so that the net, or total, electric flux is zero. 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.

What is vector flux?

For transport phenomena, flux is a vector quantity, describing the magnitude and direction of the flow of a substance or property. In vector calculus flux is a scalar quantity, defined as the surface integral of the perpendicular component of a vector field over a surface.

In which situation is electric flux negative?

Electric field lines are considered to originate on positive electric charges and to terminate on negative charges. Field lines directed into a closed surface are considered negative; those directed out of a closed surface are positive.

Is magnetic flux negative or positive?

The number of magnetic lines of force passing through a certain area held perpendicular to it is called magnetic Flux. Magnetic lines of force exiting out of the certain element are taken as positive. Magnetic lines of force entering into the certain element are generally taken as negative.

Can free slack be negative?

This flexibility is called slack, which is the amount of time that a task can be delayed without pushing the end date of the project. This is also known as free slack or free float. You can have negative float; this is also known as behind schedule.

Can work done by a force be negative?

The work done by a force can be positive or negative. If the component of the force in the direction of the displacement is positive, the work is positive, and if the component of the force in the direction of the displacement is negative, the work is negative. If the force is perpendicular to the displacement then it does no work.

Can electric field be negative?

Electric field can never “be negative.”. Electric field is a vector it has magnitude and direction. Sometimes in a 1-dimensional problem, by convention physicists choose one direction to be positive, one negative.

Is magnetic flux always zero?

Magnetic flux through a surface is zero because, in simple words, all the field lines that enter the surface exit it. In electrostatics there are charges that that can be enclosed by a surface, due to which there’s an electric field though the surface which leads to an electric flux. But in magnetism, there are no magnetic charges.