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Walter Lewin lit a fluorescent bulb by holding it near a Van de Graaff generator, charged...

Walter Lewin lit a fluorescent bulb by holding it near a Van de Graaff generator, charged to 300,000 V. Suppose that the spherical conductor of the Van de Graaff has a diameter of 54.71 cm, that the bulb is 82.91 cm in length, and Prof. Lewin is holding the near end of the bulb 28.91 cm from the surface of the Van der Graaff. What is the potential difference (V) between the two ends of the bulb?

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