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What is work done When a charge is moved from one point to another in an electric field?
Wiki User
∙ 13y ago
consider value of charge =e
electric field intensity =E(xyz)
now acharge inelectric field experience a force of =eE(XYZ)
NOW WORK done to move this particle of distance dl (small lenth)
is =eE(xyz).dl (you have to take dot product)
now to move this charge praticle from point (x1,y1,z1) To (x2,y2,z2)=intregration of [eE(xyz).dl](x1y1z1)to (x2y2z2)
Wiki User
∙ 13y ago
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What does potential diffrence mean?
Potential Difference is the difference in electric potential energy per coulomb of charge at one point of a circuit compared to the charge at another point in a circuit. Potential difference, or voltage, is a way of describing the energy of an electric field without using test charges. In circuits, potential difference is the difference in voltage from one part of a circuit to another. It can also be described by ohms law where the Voltage=Current*Resistance In electrostatics, potential difference is the line integral of the electric field from one point to another with respect to distance.
Is it possible to create an induced charge separation on an insulator?
No. To get induced charge separation you must have electrons in outer bands that can easily be moved by an electric field. Conductors have these electrons available but insulators do not.
Can electric field lines do work?
Yes. Work is force times distance, or technically the dot product of vector force times vector distance. Electric fields exert force on charge and the force does work when the charge moves in the direction of the electric force. (In the converse, when the movement of charge is against the direction of force, work is transformed into stored electromagnetic energy.) Technically, it is the electric field that does work and not the field line. Mother nature produces electric fields, but humans can not see electric fields. Humans invented the idea of field lines to create a mental picture of the field. The two most common ways are to draw lines in space or to draw a collection of arrows in space. Note: One should not confuse this answer with the question of whether work can be done by a magnetic field. A magnetic field can not do work because the direction of the magnetic force is always perpendicular to the direction of motion of charge and hence the dot product of force and distance moved is always zero.
How can magnets produce an electric current?
When a conducting material is moved through a magnetic field, a current starts to flow in the conductor. This is the principle of the electric generator.
Under what circumstances can electrical charges produce a magnetic field?
Yes, a moving electric charge creates a magnetic field around its path of travel, and this is true for any charged particle. Further, it is the basis for the idea that the electromagnetic force is one force. Physics views electric fields and magnetic fields as being derived from just that one force we mentioned. When we see charges moving continuously, we will see a "standing" magnetic field around the current path. And the magnetic field can be made to do many useful things. This is the idea behind almost all electric power generation around the world as well as countless electronic applications.
When a charge is moved from one point to another in an electric field then what is the work done?
zero along the direction of the field
When a charge is moved from one point to another in an electric field the work done is?
then our work is positive
What does potential diffrence mean?
Potential Difference is the difference in electric potential energy per coulomb of charge at one point of a circuit compared to the charge at another point in a circuit. Potential difference, or voltage, is a way of describing the energy of an electric field without using test charges. In circuits, potential difference is the difference in voltage from one part of a circuit to another. It can also be described by ohms law where the Voltage=Current*Resistance In electrostatics, potential difference is the line integral of the electric field from one point to another with respect to distance.
When charged is moved from one point to another in an electric field the work done is?
zero along the direction of d field
Is it possible to create an induced charge separation on an insulator?
No. To get induced charge separation you must have electrons in outer bands that can easily be moved by an electric field. Conductors have these electrons available but insulators do not.
Can electric field lines do work?
Yes. Work is force times distance, or technically the dot product of vector force times vector distance. Electric fields exert force on charge and the force does work when the charge moves in the direction of the electric force. (In the converse, when the movement of charge is against the direction of force, work is transformed into stored electromagnetic energy.) Technically, it is the electric field that does work and not the field line. Mother nature produces electric fields, but humans can not see electric fields. Humans invented the idea of field lines to create a mental picture of the field. The two most common ways are to draw lines in space or to draw a collection of arrows in space. Note: One should not confuse this answer with the question of whether work can be done by a magnetic field. A magnetic field can not do work because the direction of the magnetic force is always perpendicular to the direction of motion of charge and hence the dot product of force and distance moved is always zero.
In an electrode-electrolyte circuit what do the terms drift current and diffusion current mean?
A drift current is electric charges being moved in the presence of an electric field, and a diffusion current is electric charges being moved by a chemical diffusion gradient (where no electric field exists, but where there is a concentration gradient of chemical species driving the current).
How can magnets produce an electric current?
When a conducting material is moved through a magnetic field, a current starts to flow in the conductor. This is the principle of the electric generator.
Under what circumstances can electrical charges produce a magnetic field?
Yes, a moving electric charge creates a magnetic field around its path of travel, and this is true for any charged particle. Further, it is the basis for the idea that the electromagnetic force is one force. Physics views electric fields and magnetic fields as being derived from just that one force we mentioned. When we see charges moving continuously, we will see a "standing" magnetic field around the current path. And the magnetic field can be made to do many useful things. This is the idea behind almost all electric power generation around the world as well as countless electronic applications.
How electric charge exist?
Electrons are found in electron clouds, which are ouside of the nucleus.
What is the definition of electrical energy?
electrical energy - energy made available by the flow of electric charge through a conductor;
Why narrow gap semiconductors have large dielectric constant?
The dielectric constant measures how strongly the eletronic charge in the material can adjust to shield an external electric field, larger the dieletric constant, more effective is the screening. But for the electronic charge be able to adjust responding to the electric field, the electrons should be easily moved, which means that each electronic state will change assuming a polarized configuration. If the gap is large, the electric field can not mix the electronic states in the valence band with the electronic states in the conduction band, (think of perturbation theory, where the denominator will be of order of the band gap energy) so the electrons don't polarize much and the dielectric constant is small. On the other hand, in a metal, where the gap is zero, any small electric field mix the occupied states with the unoccupied ones, and we have a strong screening. The dielectric constant measures how strongly the eletronic charge in the material can adjust to shield an external electric field, larger the dieletric constant, more effective is the screening. But for the electronic charge be able to adjust responding to the electric field, the electrons should be easily moved, which means that each electronic state will change assuming a polarized configuration. If the gap is large, the electric field can not mix the electronic states in the valence band with the electronic states in the conduction band, (think of perturbation theory, where the denominator will be of order of the band gap energy) so the electrons don't polarize much and the dielectric constant is small. On the other hand, in a metal, where the gap is zero, any small electric field mix the occupied states with the unoccupied ones, and we have a strong screening.
