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Dresden 2020 – scientific programme

The DPG Spring Meeting in Dresden had to be cancelled! Read more ...

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O: Fachverband Oberflächenphysik

O 52: Poster Session - New Methods: Experiments

O 52.11: Poster

Tuesday, March 17, 2020, 18:15–20:00, P2/1OG

Following the motion of a charged conducting sphere by electrostatic induction in a parallel plate capacitorMirco Kaponig, •Andre Mölleken, Doris Tarasevitch, Detlef Utzat, Hermann Nienhaus, and Rolf Möller — Fakultät für Physik/Cenide, Universität Duisburg-Essen, Germany

The charges induced in the plates of a parallel plate capacitor due to a conducting charged moving sphere have been measured up to the mechanical contact. For larger distances the induced charge scales linearly with the distance. However, when the sphere approaches the plate further the charges on the sphere are attracted by the induced charges in the plate and move on the surface of the sphere towards the plate. This leads to a further increase of the induced charge. The experimental results compare well to an approximate formula which will be discussed in detail.

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