arrangement which can bring the motion of free electron in a conductor
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…a flow or current of free electrons through a solid body. Some materials, such as metals, are good conductors of electricity; these possess free or valence electrons that do not remain permanently associated with the atoms of a solid but instead form an electron “cloud” or gas around the peripheries…
Electric force between two charges (see text).
In electricity: Basic phenomena and principles
The electrons that are free to move will gain some speed. Since they have a negative charge, they move in the direction opposite that of the electric field. The current i is defined to have a positive value in the direction of flow of positive charges. If the moving…
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The correct is : electric field.
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