The maximum amount of charge that can be collected on a Van de Graaff generator's conducting sphere (30-cm diameter) is about $30 \mu \mathrm{C}$. Calculate the surface charge density, $\sigma$, of the sphere in $\mathrm{C} / \mathrm{m}^{2}$
Added by Lori J.
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Given diameter, \(d = 30 \, \text{cm}\), so the radius, \(r = \frac{d}{2} = \frac{30}{2} = 15 \, \text{cm} = 0.15 \, \text{m}\). Show more…
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The maximum amount of charge that can be collected on a Van de Graaff generator's conducting sphere (30-cm diameter) is about 30 µC. Calculate the surface charge density, σ, of the sphere in C/m^2. (Express your answer to two significant figures.) units = C/m^2
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