A Van de Graaff generator is a device for generating a
Chapter 25, Problem 25.98(choose chapter or problem)
A Van de Graaff generator is a device for generating a large electric potential by building up charge on a hollow metal sphere. A typical classroom-demonstration model has a diameter of 30 cm. a. How much charge is needed on the sphere for its potential to be 500,000 V? b. What is the electric field strength just outside the surface of the sphere when it is charged to 500,000 V?
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