The numerical value of the electric flux depends on the magnitudes of the electric field and the area, as well as the relative orientation of the area with respect to the direction of the electric field. … , demonstrating that electric flux is a measure of the number of field lines crossing a surface.
Does electric flux depend on nature of surface?
Gauss’s law of electricity, which is included within the fundamental laws of electromagnetism, states that the electric flux through a closed surface with electric charge inside, just depends on the net charge enclosed in the surface and does not depend the shape or size of the surface.
Is electric flux medium dependent?
Yes, the medium affect the electric flux. Vacuum permitivity relates the relative effect against that of an ideal vacuum.
Is flux dependent on current?
This also means that the flux induced by a current (not a change in current) is proportional to the current, since the flux is produced in response to the current. So, a change in flux induces a current and a voltage which is proportional to the rate of change of flux. This fits with Ohm’s Law (V = IR).
Is flux dependent on distance?
The flux doesn’t depend on the distance r. We would get the same result no matter the size of the closed surface around the point charge.
Can you have negative flux?
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.
How does electric flux depend on area?
it’s like the electric field is inversely proportional to the applied surface area of the enclosing surface area. The flux through a closed (Gaussian) surface depends on the net charge enclosed by the surface, according to Gauss’s law. The shape and size of the surface does not change the flux.
How is electric flux calculated?
The total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The electric flux through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field.
What does Gauss’s law state?
It states that the electric flux through any closed surface is proportional to the total electric charge enclosed by this surface. … By convention, a positive electric charge generates a positive electric field.
Is current same as flux?
Electric flux means rate of flow of the electric field (electric lines of force) through a given area and electric flux is proportional to the electric field lines going through a surface. Current is rate of flow of electric charge through any given area.
Is current a flux?
Given a current such as electric current—charge per time, current density would also be a flux according to the transport definition—charge per time per area.
Is current density same as flux?
Any quantity that can be written as the surface intergral of a vector field is called the flux of that field through that surface. So, for instance, the electric current I, is the flux of the current density vector J.