Figure illustrates that a region (e) in the uniform copper sphere accumulates an excess of electrons (volume charge). The mutual repulsion of excess electrons on a spherical conductor finally distributes them uniformly on the spherical surface (surface charge). Estimate the decay time of the volume charge toward the surface. 20 Note: The conductivity of copper is of the order 108 S/m. The resistivity of copper is of the order 10-8 Om. The vacuum permittivity is 8.854 x 10-12 Fm-¹.
Figure illustrates that a region (e) in the uniform copper sphere accumulates an excess of electrons (volume charge). The mutual repulsion of excess electrons on a spherical conductor finally distributes them uniformly on the spherical surface (surface charge). Estimate the decay time of the volume charge toward the surface. 20 Note: The conductivity of copper is of the order 108 S/m. The resistivity of copper is of the order 10-8 Om. The vacuum permittivity is 8.854 x 10-12 Fm-¹.
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Transcribed Image Text:Figure illustrates that a region (e) in the uniform copper
sphere accumulates an excess of electrons (volume charge).
The mutual repulsion of excess electrons on a spherical
conductor finally distributes them uniformly on the spherical
surface (surface charge). Estimate the decay time of the
volume charge toward the surface.
20
e
Note: The conductivity of copper is of the order 108 S/m. The resistivity of
copper is of the order 10-8 m. The vacuum permittivity is 8.854 × 10-¹² Fm-¹.
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