4. Your friend gets really excited by the idea of making a lightning rod or maybe just a sparking toy by connecting two spheres with a thin wire, as shown in the below figure, and making R, so small that the electric field is greater than the dielectric strength of air, just from the usual 150 V/m (assume this is the electric field at the surface of the larger conducting sphere) electric field near the surface of the Earth. If R, is 10.0 cm, find R,, surface charge density on each sphere, and the electric potential at the surface of each sphere. Does this seem practical? /Ri R2

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: Electric Potential And Capacitance
Section: Chapter Questions
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4. Your friend gets really excited by the idea of making a lightning rod or maybe just a sparking toy by
connecting two spheres with a thin wire, as shown in the below figure, and making R, so small that the
electric field is greater than the dielectric strength of air, just from the usual 150 V/m (assume this is the
electric field at the surface of the larger conducting sphere) electric field near the surface of the Earth. If R, is
10.0 cm, find R,, surface charge density on each sphere, and the electric potential at the surface of each
sphere. Does this seem practical?
Transcribed Image Text:4. Your friend gets really excited by the idea of making a lightning rod or maybe just a sparking toy by connecting two spheres with a thin wire, as shown in the below figure, and making R, so small that the electric field is greater than the dielectric strength of air, just from the usual 150 V/m (assume this is the electric field at the surface of the larger conducting sphere) electric field near the surface of the Earth. If R, is 10.0 cm, find R,, surface charge density on each sphere, and the electric potential at the surface of each sphere. Does this seem practical?
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