Electric field potential

Electric field potential

An important feature of the electric field, as the field has no vortices and created some stationary sources, it is a potentiality. Electric field is called potential if the work that makes the charge carrier in such a field, while moving it in any closed loop is equal to zero. Electrostatic field, ie a field that is formed by the fixed electrical charges, also has similar potentiality. The work of the charge carrier as it moves in a closed circuit in the electrostatic field will be zero. The trajectory of this movement is called closed loop, and this trajectory can be any kind of fundamental importance to its isolation, rather than the form. Potential φ points of electric field is called the work that must be expended to move the charge +q in the amount of Coulomb from infinity to this point of the field, or work on the movement of the same charge +q from that point to infinity. ...

Voltage. Electric potential difference

Voltage. Electric potential difference

Also the lines of force in the description fields are present also equipotential lines, and thus there is another characteristic such as the potential of the electric field. Imagine the scene uniformly distributed electric field lines that intersect the equipotential lines, each such line will have its value field potential. For convenient use of such a representation of the electric field pattern flat capacitor having two plates and a fully charged up to a certain maximum value. In such a capacitor is induced an electrical charge, and the space between the plates so be filled with dielectric gas such as air. Each side of capacitor has a certain amount of charge Q. Since capacitor plates are made of metal in which the charge carriers are negative type charges - electrons on the one plate will be an excess of electrons and another drawback. Thus, you can designate one as the electrode is +Q, and the other as -Q, and the electric field lines will be directed according to the rules of +Q to -Q. As a result, we get a picture of the image below. ...

Electric field lines

Electric field lines

The concept of an electric field arose when scientists tried to explain the long-range interaction that occurs between the charged objects. The idea of ​​an electric field was first introduced by physicist of the 19th century by Michael Faraday. It was the result of the perception of Michael Faraday invisible reality in the form of paintings describing long-range power lines. Faraday did not think in a single charge, but went ahead and expanded the boundaries of the mind. He suggested that the charged object (or mass in the case of gravity) affect the space and introduced the concept of the field of influence. Considering these fields he was able to explain the behavior of charges and thereby revealed many of the secrets of electricity. The electric field refers to a category of things that are seen not with the eyes and mind. Image of force interaction in the form of lines of different types, as well as a different color colorings - just a way to help the mind to see the invisible. ...

Electric field intensity

Electric field intensity

The standard metric units of measure the electric fields arise from its definition. Thus, the electric field is defined as the force is equal to 1 Newton (N) divided by the 1 Coulomb (C). Electric field intensity is measured in Newton/Coulomb anyway H/C. The SI also measured in volts/meter. To understand the essence of the subject as the electric field is much more important dimension in the metric system in the H/C, because in this dimension reflects the origins of such features as field intensity. Designation in the voltmeter does the concept of potential field (V) base, which in some areas is convenient, but not all. As mentioned above, the electric field is a vector quantity. In contrast to the scalar, vector quantity is not fully described, if not defined its direction. The magnitude of the electric field is calculated as the amount of force on any the probe charge within the electric field. ...



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