WebThe strong electric field (approximately 1,000,000 volts per metre) rotates the polar molecules into an alignment that persists when the external field is removed. Sometimes electrets are made by allowing a molten material to solidify in a strong electric field. WebJan 19, 2024 · 1 Answer. Sorted by: 2. Yes, this is called field emission. It is easiest to create by having the electric field geometry between the two electrodes be highly asymmetric, as for example having the negative electrode be a sharpened needle pointing towards a flat plate which serves as the positive electrode. You can get field emission with tens ...

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WebElectric field is the force experienced by a test charge that has a value of +1 +1. One way to visualize the electric field (this is my mental model): imagined small positive test charge glued to the end of an imaginary stick. (Be sure your imaginary stick doesn't conduct, like … For the electric force, the force-carrier is the photon, which is sort of like a "chunk" of … The strength of the electric field falls off as 1/r^2. Magnetic poles always exist as … First, draw a coordinate plane with q0, the body with charge +4 C, as the origin and … hsbc money market deposits

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WebField emission—the quantum-mechanical tunneling of electrons from the surface of a material into vacuum by means of a strong electric field—has been studied for over a … WebElectric fish produce their electrical fields from an electric organ. This is made up of electrocytes, modified muscle or nerve cells, specialized for producing strong electric fields, used to locate prey, for defence against … WebJul 27, 2011 · Remember that the strength of a electric field is voltage over distance. That means decreasing the distance makes the field stronger as much as increasing the … hobby lobby 4 tier shelf