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The electric field exerts a force on the test charge in a given direction. The force exerted is proportional to the charge of the test charge. For example, if we double the charge of the test charge, the force exerted on it doubles. Mathematically, saying that electric field is the force per unit charge is written as
- 21.3 The Dual Nature of Light
Figure 21.10 shows a comet with two prominent tails. Comet...
- 20.3 Electromagnetic Induction
Note that magnetic field lines that lie in the plane of the...
- 23.3 The Unification of Forces
As discussed earlier, the short ranges and large masses of...
- 2.3 Position Vs. Time Graphs
As we said before, d 0 = 0 because we call home our O and...
- 21.3 The Dual Nature of Light
28 sie 2019 · 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.
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.
13 sty 2021 · If a charge distribution is continuous rather than discrete, we can generalize the definition of the electric field. We simply divide the charge into infinitesimal pieces and treat each piece as a point charge.
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.
The electric field (lines with arrows) of a charge (+) induces surface charges (red and blue areas) on metal objects due to electrostatic induction. Electromagnetic fields are electric and magnetic fields, which may change with time, for instance when charges are in motion.
1.2: Electric Field. Originally intended as merely an "explanation" of action-at-a-distance, the idea of an electric field turns out to be a much more useful model than one might expect. 1.3: Computing Electric Fields for Known Charge Distributions.
