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A sphere of radius 10 cm is charged to a potential of 500V Calculate the outward pull per unit area?
Wiki User
∙ 10y ago
V = KQ/R
let surface charge density be sigma.
so, Q = 4pir^2.(sigma)
now, V = (r.sigma)/epsilon
epsilon = 8.854 X 10^-12 C2 N-1 m-2
outward pull = (sigma)^2/2.epsilon
=(epsilon.V^2)/2r^2
=1390 * 10-8 N/m2
Wiki User
∙ 10y ago
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