Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt. Charge can be added until the electric field at the surface of the dome becomes equal to the dielectric strength of air. Any more charge leaks off in sparks as shown in the figure below. Assume the dome has a diameter of 40.0 cm and is surrounded by dry air with a "breakdown" electric field of 3.00 x 106 V/m. (a) What is the maximum potential of the dome? kV (b) What is the maximum charge on the dome?
Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt. Charge can be added until the electric field at the surface of the dome becomes equal to the dielectric strength of air. Any more charge leaks off in sparks as shown in the figure below. Assume the dome has a diameter of 40.0 cm and is surrounded by dry air with a "breakdown" electric field of 3.00 x 106 V/m. (a) What is the maximum potential of the dome? kV (b) What is the maximum charge on the dome?
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Transcribed Image Text:Lightning can be studied with a Van de Graaff generator, which consists of a
spherical dome on which charge is continuously deposited by a moving belt.
Charge can be added until the electric field at the surface of the dome
becomes equal to the dielectric strength of air. Any more charge leaks off in
sparks as shown in the figure below. Assume the dome has a diameter of
40.0 cm and is surrounded by dry air with a "breakdown" electric field of
3.00 x 106 V/m.
(a) What is the maximum potential of the dome?
kV
(b) What is the maximum charge on the dome?
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