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Why are the equipotential lines near conductor surfaces parallel to the surface?
For conductors, the electric field perpendicular to its surface and no field exist within the conductor. As a result the equipotential lines are found near the surface. They are parallel to the surface since equipotential are perpendicular to field lines.
Why TEM wave is not supported by hollow waveguide?
Arif Ullah khan utman kheel this is because for conductor E parallel is zero this means that the surface of the wave guide is at equipotential and this potential follow the laplace equation .it means that there is no maxima and minima inside the wave guide . this means that the electric field inside zero . hence the TEM do not exist in wave guide only TE and TM can be exist . if we place some conductor in the wave guide then the conductor inside will not be equipotential and the TEM waves can be exist . like in Coaxial cables
Why TEM mode does not exist in waveguide?
for TEM u need to a magnetic field (H) linked to an electric field .for this u need to a J relative to E (E=sigma J). because [curl H = J] but optical fiber is dielectric wave guide and sigma is zero and u only have dD/dt so there isn't H linked to E.
Why don't equipotential lines cross?
If this means voltage potential it is a conservative force so it is path independant, much like gravity, it doesn't matter how somthing got to where it is it will still have the same potential at that height. So if it had two different potential lines crossing it would be much like an object having different potential energies at one point in space. This is impossible.
What is surface leakage current?
Undesired current flow across the surface of a semiconductor device due to contamination of that surface. This disturbs the operation of the device and causes a variety of failures. Insulators can also have surface leakage current for similar reasons.
Under what conditions will a surface be an equipotential surface?
A surface will be an equipotential surface when the electric potential is the same at all points on the surface.
What is the geometrical shape of equipotential surface due to single isolated charge?
what is the geometrical shape of equipotential surface due to single isolated charge
Why must electric field line be perpendicular to equipotential surfaces?
If the field lines were not perpendicular to the surface, then they could be decomposed into components perpendicular and parallel to the surface. But if there is an E-field along the surface, the surface is no longer an equipotential.
Why aconductor is an equipotential surface?
A conductor is an equipotential surface because the electric field inside a conductor is zero in electrostatic equilibrium. This means that all points on the conductor have the same electric potential, making it an equipotential surface. Any excess charge on the conductor redistributes itself to ensure this equal potential.
What does equipotential mean?
Equipotential refers to a surface where all points have the same electrical potential. In physics, this means that the work done in moving a charge from one point to another along that surface is zero. Equipotential surfaces are used to visualize and analyze electric fields.
What is the significance of an equipotential surface in the context of electric fields?
An equipotential surface in the context of electric fields is significant because it represents points that have the same electric potential. This means that no work is required to move a charge along an equipotential surface, making it a useful tool for understanding the behavior of electric fields and the distribution of charges in a given space.
What is the significance of an equipotential surface in a gravity field and how does it relate to the distribution of gravitational potential energy?
An equipotential surface in a gravity field is a surface where the gravitational potential energy is the same at all points. This means that no work is required to move an object along this surface. The significance of an equipotential surface is that it helps us understand the distribution of gravitational potential energy in a gravity field. The distribution of gravitational potential energy is related to the shape and orientation of equipotential surfaces, with steeper gradients indicating higher potential energy differences.
Why are equipotential lines perpendicular to the insulator mapped?
Equipotential lines are perpendicular to the insulator surface because the electric field lines are always perpendicular to the equipotential lines in electrostatic equilibrium. This relationship ensures that there is no component of the electric field tangent to the insulator surface, which would cause the charges to move. As a result, the charges remain at rest on the surface of the insulator.
Is any force is required to move a small charge on equipotential surface?
yes
What is the shape of equipotential surface due to a point charge?
concentric spherical surfaces
What is the amount of work done in moving a 100nc charge between two points 5 cm apart on an equipotential surface?
An equipotential surface has the same value of potential. Thus, work done would be zero. Work done = Charge X Potential difference
What is Work done in moving a unit positive charge through a distance x on an equipotential surface?
No work is done in moving a unit positive charge through a distance x on an equipotential surface. This is because an equipotential surface has a constant electric potential, and work done is equal to the charge multiplied by the change in potential. Since the potential is constant, there is no change in potential and thus no work done.
