Electric Potential and Capacitance · Potential

The electrostatic potential in a charged spherical region of radius

r

varies as

V = ar^{3} + b

, where

a

and

b

are constants. The total charge in the sphere of unit radius is

\alpha\times\pi a\epsilon_0

. The value of

\alpha

is .
(permittivity of vacuum is

\epsilon_0

)

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