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[6] [7] The ice pail experiment was the first precise quantitative experiment on electrostatic charge. [8] It is still used today in lecture demonstrations and physics laboratory courses to teach the principles of electrostatics. [9]
So for all intents and purposes, the Faraday shield generates the same static electric field on the outside that it would generate if the metal were simply charged with +Q. See Faraday's ice pail experiment, for example, for more details on electric field lines and the decoupling of the outside from the inside. Note that electromagnetic waves ...
Young's interference experiment: Thomas Young: Confirmation Wave theory of light: 1819 Arago spot experiment François Arago: Confirmation Fresnel diffraction due to circular object 1838 Bedford Level experiment: Samuel Rowbotham: Measurement Curvature of the Earth 1843 Faraday's ice pail experiment: Michael Faraday: Demonstration ...
English: Diagram of electric fields in Faraday's ice pail experiment.A charged object (small sphere) is placed inside a conductive metal shell (large sphere).The electrostatic field of the interior charge causes the mobile charges in the metal to separate, inducing a positive charge on the inner surface of the shell, and a negative charge on the outer surface.
In his work on static electricity, Faraday's ice pail experiment demonstrated that the charge resided only on the exterior of a charged conductor, and exterior charge had no influence on anything enclosed within a conductor. This is because the exterior charges redistribute such that the interior fields emanating from them cancel one another.
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By Gauss's law (as illustrated in the Faraday ice pail experiment), the excess positive charge is accumulated on the outer surface of the outer shell, leaving no electric field inside the shell. Continuing to drive the belt causes further electrostatic induction, which can build up large amounts of charge on the shell.
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