Part A A Van de Graaff generator can develop a very large potential difference, even millions of volts. Electrons are pu

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Part A A Van De Graaff Generator Can Develop A Very Large Potential Difference Even Millions Of Volts Electrons Are Pu 1 (67.46 KiB) Viewed 32 times

Part A A Van de Graaff generator can develop a very large potential difference, even millions of volts. Electrons are pulled off the belt by the high voltage pointed electrode at A, leaving the belt positively charged. (Recall Example 23-5 in the textbook where we saw that near sharp points the electric field is high and ionization can occur.) The belt carries the positive charge up inside the spherical shell where electrons from the large conducting sphere are attracted over to the pointed conductor at B, leaving the outer surface of the conducting sphere positively charged. As more charge is brought up, the sphere reaches extremely high voltage. Consider a Van de Graaff generator with a sphere of radius 0.16 m (Figure 1) What is the electric potential on the surface of the sphere when electrical breakdown occurs? (Assume V = 0 at r = 00.) Express your answer to two significant figures and include the appropriate units. НА Vsurface Value Units Submit Request Answer Part B What is the charge on the sphere for the potential found in part A? Express your answer to two significant figures and include the appropriate units. НА ? Figure < 1 of 1 Value Units GENERATOR Conductor + Submit Request Answer B Pulley Provide Feedback Insulator -Motor-driven pulley 50 kV f