A Van de Graaff generator has a spherical dome of radius 12 cm. Operating in dry air, where "atmospheric breakdown" is at Emax = 3.0 × 10^6 N/C, what is the maximum charge that can be held on the dome? (ke = 8.99 × 10^9 N×m2/C2)

a. 4.8 × 10^-6 C
c. 2.7 × 10^-5 C
b. 1.3 × 10^-5 C
d. 3.3 × 10^-6 C


A

Physics & Space Science

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