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The electric flux depends on charge, when the charge is zero the flux is zero. The electric field depends also on the charge. Thus when the electric flux is zero , the electric field is also zero for the same reason, zero charge.
Phi= integral E.dA= integral zcDdA = zcQ
Phi is zcQ and depends on charge Q, as does E.
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A Gaussian surface does not enclose a charge Does it mean that E equals 0 on its surface?
No.there can be electric field on the Gaussian surface even if the charge enclosed by it is zero.However ,net flux will be zero through the surface.
Where on the axis other than at an infinite distance is there a point at which their net electic field is zero between the charges to their left or to their right explain?
When the two charges are of same polarity then field becomes zero on its axial line but in between the two charges. If they are of opposite polarity then at points outside not in between there will be one point where the net electric field becomes zero. That point will be nearer to the weaker charge ie closer to the weaker and far from the stronger one.
1 A Gaussian surface in the shape of a right circular cylinder with end caps has a radius of 12.0cm and a length of 80.0cm Through one end there is an inward magnetic flux of 25.0µWb At the other e?
Using the Gauss' Law of Magnetism We know total flux will be zero flux(top)+flux(bottom)+flux(curved side)=0 ------- (a) flux(bottom)= -25e-3 (GIVEN) (-ve shows inward direction) flux(top)=B*A=(1.6e-3)*[3.14*(0.12)^2]=2.304e-5 Put the values in eq (a) you'll get flux(curved side)= +24.97e-3 (+ve shows direction is outward)
What is an electric charge less than zero?
Compound
What is the value of gravitational field at infinity?
zero
What is maximum and minimum electric flux?
As we know that electric flux is the total number of electric lines of forces passing through a surface. Maximum Flux: Electric flux through a surface will be maximum when electric lines of forces are perpendicular to the surface. Minimum flux: Electric flux through a surface will be minimum or zero when electric lines of forces are parallel to the surface.
What will be value of flux if the surface does not enclose any charge?
If the surface does not enclose any charge, the electric flux through the surface will be zero. This is because electric flux is a measure of the total electric field passing through a surface, and if there are no charges within the surface, there will be no electric field passing through it.
What is the total flux across a gaussian sphere enclosing an electric dipole?
The total flux across a Gaussian sphere enclosing an electric dipole is zero. This is because the electric field lines originating from the positive charge of the dipole cancel out the electric field lines terminating at the negative charge within the sphere, resulting in a net flux of zero according to Gauss's Law.
If potential is constant throughout a given region of space can you say that electric field is zero in that region?
No, the electric field does not necessarily have to be zero just because the potential is constant in a given region of space. The electric field is related to the potential by the gradient, so if the potential is constant, the electric field is zero only if the gradient of the potential is zero.
What is the electric field half way to the centre of a conducting sphere charged to a potential of 15v?
The electric field halfway to the center of a conducting sphere with a charge of 15V would be zero. Inside a conducting sphere, the electric field is zero because charges distribute themselves in such a way that cancels out the field in the interior of the sphere.
Why is electric potential inside a ring conductor on a conducting paper that has elctric field zero?
The electric potential inside a ring conductor on a conducting paper is zero because the electric field inside a conductor in electrostatic equilibrium is zero. This is due to the charges redistributing themselves in such a way that the electric field cancels out inside the conductor. Since the electric potential is directly related to the electric field, the potential inside the conductor is also zero.
What is the electric potential when the electric field is zero?
When the electric field is zero, the electric potential is constant throughout the region and is independent of position. This means that the electric potential is the same at every point in the region where the electric field is zero.
Why curl of electrical field is zero?
The curl of an electric field is zero because electric fields are conservative, meaning the work done by the field on a charge moving around a closed path is zero. This implies that the circulation of the electric field around any closed loop is zero, leading to a curl of zero.
Why should the Electric field inside a conductor zero?
The electric field inside a conductor is zero because any electric field that is present will cause the charges inside the conductor to move until they distribute themselves in such a way that cancels out the electric field. This redistribution of charges ensures that the net electric field inside the conductor is zero in equilibrium.
Why induced emf alternates?
Here is A Simple answer for this question as you know that emf is induced in the conductor when there is change of flux linkage to the conductor which gives rise to the inducement of electric field in the conductor that provide drift velocity to the electrons hence emf is induced in the conductor but the last only till the change in flux in progress and becomes zero as soon as the flux linkages becomes constant hence we summaraize that for inducement of current there must be change in change of flux hence change in electric field that gives rise to allternating emf.
The potential is constant through a given region of space Is the electrical field zero or non zero?
If the potential is constant through a given region of space, the electric field is zero in that region. This is because the electric field is the negative gradient of the electric potential, so if the potential is not changing, the field becomes zero.
A Gaussian surface does not enclose a charge Does it mean that E equals 0 on its surface?
No.there can be electric field on the Gaussian surface even if the charge enclosed by it is zero.However ,net flux will be zero through the surface.
