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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 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 magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the what?
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the length and the speed of the conductor.
What will happen to the electric field when a dielectric is placed?
The electric field is weakened when a dielectric is inserted.
What do you mean by eddy current loss?
Eddy currents are currents induced in conductors to oppose the change in flux that generated them. It is caused when a conductor is exposed to a changing magnetic field due to relative motion of the field source and conductor, or due to variations of the field with time. This can cause a circulating flow of electrons, or a current, within the body of the conductor. These circulating eddies of current create induced magnetic fields that oppose the change of the original magnetic field due to Lenz's law, causing repulsive or drag forces between the conductor and the magnet. The stronger the applied magnetic field, or the greater the electrical conductivity of the conductor, or the faster the field that the conductor is exposed to changes, then the greater the currents that are developed and the greater the opposing field.
Why is there no electric field inside a conductor?
Inside a conductor, the electric charges are free to move and redistribute themselves to cancel out any external electric field. This results in no net electric field inside the conductor.
What is the distribution of the electric field inside a hollow conductor?
The electric field inside a hollow conductor is 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.
Under electrostatic conditions, why is there no electric field inside a solid conductor?
Under electrostatic conditions, there is no electric field inside a solid conductor because the free electrons in the conductor redistribute themselves to cancel out any external electric field, resulting in a net electric field of zero inside the conductor.
Why is the electric field inside a conductor always zero?
The electric field inside a conductor is always zero because the free charges in the conductor rearrange themselves in such a way that they cancel out any external electric field that may be present. This redistribution of charges ensures that the electric field inside the conductor is zero, maintaining electrostatic equilibrium.
What is the electric field inside a conductor according to the concept of mastering physics?
According to the concept of mastering physics, the electric field inside a conductor is zero.
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.
Does charge inside a conductor exert electric field on another charge placed outside the conductor?
Yes, the charges inside a conductor will rearrange when an external charge is placed near or on the surface of the conductor, resulting in an induced electric field inside the conductor. This induced electric field will influence the external charge's behavior without the need for direct contact between the charges.
What is the relationship between the electric field and surface charge at a conductor?
The electric field inside a conductor is zero, and the surface charge resides on the outer surface of the conductor. This means that the electric field at the surface of a conductor is perpendicular to the surface and proportional to the surface charge density.
What is the electric field on the surface of the conductor?
The field is zero inside only if any charge is evenly distributed on the surface. That's a mathematical theorem, sorry I don't have the proof handy. But when you measure the electric field inside a charged sphere, the charge you use might be large enough to redistribute the surface charge. In this case the electric field will not be zero. Only if you measure at the centre.
When an electric field is applied to a conductor does the electric field develops within the conductor or around the conductor?
The electric field will develop inside the conductor, depending on the characteristics of the electric field -- in a steady state (DC) or in an alternating mode (AC). The higher the frequency of oscillation, the shallower the field will reside in the conductor -- skin depth (check the related link). Hence, when the frequency is high, only the few mm's of the outer skin participates in the action (AC electrical conduction.) In steady state (DC), the frequency is zero, the electric field is distributed inside the whole conductor.
Why electric field lines are always perpendicular to the surface of the conductor?
Electric field lines are always perpendicular to the surface of a conductor because in electrostatic equilibrium, the electric field inside a conductor is zero. Any component of the electric field parallel to the surface would result in the flow of charges until the electric field is perpendicular to the surface, ensuring a state of equilibrium.
