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The electrostatic torque on a rotating conducting sphere

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Abstract

The electrostatic torque on a rotating sphere through which a current is fed by means of two diametrically situated sliding contacts is positive in the direction of rotation. However, this torque is too small in practice to keep a ball bearing motor running.

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References

  1. Gruenberg H (1978) The ball bearing as a motor. Am J Phys 46:1213–1219

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  2. Weenink MPH (1981) The electromagnetic torque on axially symmetric rotating metal cylinders and spheres. Appl Sci Res 37:171–182

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Author notes

  1. M. J. C. M. van Doorn

    Present address: , Bachlaan 664, 5011 BP, Tilburg, The Netherlands

Authors and Affiliations

  1. Department of Electrical Engineering, Technological University of Eindhoven, The Netherlands

    M. J. C. M. van Doorn

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  1. M. J. C. M. van Doorn
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van Doorn, M.J.C.M. The electrostatic torque on a rotating conducting sphere. Appl. Sci. Res. 40, 327–331 (1983). https://doi.org/10.1007/BF00383038

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  • DOI: https://doi.org/10.1007/BF00383038

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