Aircraft systems
Classified in Physics
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Electric field:
- The electric field is the model that describes the interaction between bodies and systems with electrical properties of nature. Mathematically it is described as a vector field in which an electric charge value point "q" would suffer from a mechanical force "F"
- Lines of force:
- There are lines perpendicular to the body surface, so that its tangent at a point coincides with the field direction at that point.
-A greater concentration of lines, most module. In the example of the coin, the field is higher in the vicinity of this and decreases as we move away from it.
- Linking the points where the electric field is equal, we are equipotentials (see Electric potential), points where the potential has the same numerical value.
Gauss's law:
- In physics and mathematical analysis, Gauss's law relates the electric flux through a closed surface and the electric charge enclosed within that surface. In the same way, also relates the divergence of the electric field with the charge density.
Millikan's experiment:
- It's called experiment or experiment Millikan oil drop experiment first performed in 1909 by the American physicist Robert Millikan and that allowed him to measure the electron charge.
- The experiment consists of introducing a gaseous element, oil droplets with a radius of about a micrometer. These droplets fall very slowly with uniform motion, with your weight balanced by the viscosity of the medium. This type of movement is governed by the law of Stokes. However, the electrostatically charged droplets leaving the atomizer so that its motion of fall is significantly altered if it is acting a vertical electric field. Suitably adjusting the magnitude of the electric field, the drop can be achieved remains in suspension.
- Knowing the value of the mass m of the drop, the electric field strength E and the value of gravity g, we can calculate the charge q of the drop in equilibrium
Potential difference between 2 points:
- The electric potential at a point is the work to be performed by an electric force (Coulomb's law) to move a positive charge q from infinity (where the potential is zero) to that point, divided by the load.