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17 lut 2023 · An electric field is an invisible force field caused by an electric charge. It is an alteration in the space (air or vacuum) around the charge. It results in an electric force that is felt by electric charges when placed close to one another.
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We would have to calculate the sum of the forces from scratch. Fortunately, it is possible to define a quantity, called the electric field, which is independent of the test charge. It only depends on the configuration of the source charges, and once found, allows us to calculate the force on any test charge.
An electric field is a region of space around an electrically charged particle or object in which an electric charge would feel force. An electric field is a vector quantity and can be visualized as arrows going toward or away from charges.
In this video David explains why physicists came up with the idea of the electric field, how it's useful, and explains how the electric field is defined.
15 lut 2023 · The electric field a vector field, so we would like to "draw a map" of the vectors around a source charge. Based on Equation \ref{Efield}, the electric field has a fixed magnitude for a given radial distance away from the charge, with vectors pointing away from a positive source.
Electric Field Coulomb's law, potential, vector fields. Electric Field. Electric charges experience forces from other charges, for example two positive charges push apart, or repel. We explain this by saying that an electric charge sets up (or induces) an electric field around it.
