A demonstration Van de Graaff generator has a 25.0 cm diameter metal sphere that produces a voltage of 100 kV near its surface. What excess charge resides on the sphere? (Assume that each numerical value here is shown with three significant figures.) Aluminumsphere-ConductorCoveredpulloyFlat beltVoltsCoveredpulleyMotorFigure 19.7 The voltage of this demonstration Van de Graaff generator is measured between the charged sphere and ground. Earth's potential istaken to be zero as a reference. The potential of the charged conducting sphere is the same as that of an equal point charge at its center.

Given: Diameter =25 cm radius, r = 1.5 cm = 0.125 m Voltage, V = 100 kV = 100 x 1000 V

Answered: Aluminum sphere -Conductor Covered…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 45P: A 0.500-cm-diameter plastic sphere, used in a static electricity demonstration, has a uniformly...

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A demonstration Van de Graaff generator has a 25.0 cm diameter metal sphere that produces a voltage of 100 kV near its surface. What excess charge resides on the sphere? (Assume that each numerical value here is shown with three significant figures.)

Aluminum
sphere
-Conductor
Covered
pulloy
Flat belt
Volts
Covered
pulley
Motor
Figure 19.7 The voltage of this demonstration Van de Graaff generator is measured between the charged sphere and ground. Earth's potential is
taken to be zero as a reference. The potential of the charged conducting sphere is the same as that of an equal point charge at its center.

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