What is the electric flux if the surface is perpendicular to the electric field?
Yes, electric flux is zero when an electric field is perpendicular but not at a surface. It is zero when it is perpendicular to the area vector as E.S=EScos(90)=0.
Why is electric field perpendicular to surface?
The mutual repulsion of excess positive charges on a spherical conductor distributes them uniformly on its surface. The resulting electric field is perpendicular to the surface and zero inside.
What is the flux taken perpendicular to the field?
Answer: The magnetic flux through a unit area perpendicular to the field is Magnetic Flux Density. – It is defined as the amount of magnetic flux passing through per unit area of a section which is perpendicular to the direction of field.
In which of the following cases the flux crossing to the surface is zero?
The net electric flux crossing a closed surface is always zero if and only if the net charge enclosed is zero. The net electric flux crossing an open surface is never zero.
Does zero electric flux mean zero electric field?
Zero flux does not imply zero field in general.
Can you have a 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.
When the electric flux through a closed surface is zero?
Gauss’s law tells us that the electric flux through a closed surface is proportional to the net charge enclosed by the surface. Thus, the electric flux through the closed surface is zero only when the net charge enclosed by the surface is zero.
Why is electric flux zero if the electric field is parallel?
Electric flux is proportional to the number of electric field lines going through a normally perpendicular surface. so if the electric field is parallel to the surface that means that no electric field is passing normally to the surface and hence the flux is zero.
When is the electric flux through a surface at maximum?
Electric flux through a surface is at *maximum* when the electric field is perpendicular to the surface. The whole point of flux is to measure the “total number of field lines” punching through a surface. If the electric field is lying *along* the surface, it isn’t going in or going out and the flux is zero.
What does it mean if the electric field is perpendicular?
I think you meant to say “parallel.” Electric flux through a surface is at *maximum* when the electric field is perpendicular to the surface. The whole point of flux is to measure the “total number of field lines” punching through a surface. If the electric field is lying *along* the surface, it isn’t going in or going out and the flux is zero.
Which vector will have maximum flux if E is perpendicular?
According to the pic. Now if E is perpendicular to the surface then two vector will be parallel so angle between them will be zero and cos 0 =1 so the flux will be maximum.