Wire chambers can locate, in a gas, high energy charged elementary particles such as electrons or protons, and follow their path, which can for example be deflected by a magnetic field. Very thin metallic wires are stretched between two parallel metal plates connected to ground, and charged at high voltages (some thousands volts). The chamber contains a gas whose small electric discharges at the crossing of high-energy charged particles are analysed. In all cases , the electric characteristics are shown (fields at different points and equipotentials ) , which is an excellent example of electric equilibrium of conductors.
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