Can electric flux be a negative number?
Can electric flux be a negative number?
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 find the sign of flux?
To compute the flux, we see how aligned field vectors are with vectors normal to the 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 does not affect electric flux?
It is important to note that while the electric flux is not affected by charges that are not within the closed surface, the net electric field, E, in the Gauss’ Law equation, can be affected by charges that lie outside the closed surface. Thus, the SI base units of electric flux are kg·m3·s−3·A−1.
Is electric flux a vector?
Is Electric flux a scalar or a vector quantity? Answer: Electric flux is a scalar quantity. It is a scalar because it is the dot product of two vector quantities, electric field and the perpendicular differential area.
Does electric flux depend on shape?
As per the Guess theorem in electrostatics, electric flux does not depend on the shape or size of the surface. The electric flux depends only on the charge enclosed by the surface.
Does electric flux depend on medium?
1 Answer. Yes, the medium affect the electric flux.
What is the electric flux through a cube of side 1 cm?
Since net charge enclosed in the surfaces bound by the cube is zero(dipole consists of equal and opposite charges), according to the Gauss Law, it can be claimed that the net flux through the cube is zero.
On what factors does electric flux depends?
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.
What is electric flux density?
Electric flux density is a measure of the strength of an electric field generated by a free electric charge, corresponding to the number of electric lines of force passing through a given area. Electric flux density is electric flux passing through a unit area perpendicular to the direction of the flux.
What is electric flux per unit area?
The charge per unit area is called the electric flux density. Or, the amount of flux passing through the defined area perpendicular to the direction of flux. The amount of work needed to move a unit charge from one point to the other against an electric field is called the electric potential.
What is electric flux line?
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. Electric field lines are considered to originate on positive electric charges and to terminate on negative charges.
What is electric flux and its unit?
Electric Flux: Electric flux is a number of electric lines of forces which posses through any cross sectional area when the cross sectional area in kept perpendicular to the direction of electric field. Electric flux is scalar quantity which is denoted by ΦE. S.I. Unit is Neutron(metre2/ coulomb)
What is the symbol for electric flux?
We represent the electric flux through an open surface like S1 by the symbol Φ. Electric flux is a scalar quantity and has an SI unit of newton-meters squared per coulomb (N⋅m2/C).
Is electric field a vector field?
The electric field is defined mathematically as a vector field that associates to each point in space the (electrostatic or Coulomb) force per unit of charge exerted on an infinitesimal positive test charge at rest at that point.
Is electric field a force?
Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially in toward a negative point charge.