The ball of radius R = 18 cm has a positive charge, the

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The ball of radius R = 18 cm has a positive charge, the bulk density of which depends only on the distance r from its center like p = p0 (1 - r / R), where p0 = 177 nC / m ^ 3. Assuming that the dielectric constant of the sphere e = 1, find: a) the charge of the ball, b) module of the electric field inside and outside the sphere as a function of the distance r from the center of the sphere; c) the maximum value of the modulus of the Tmax and the corresponding distance kb u) the potential at the surface of the ball. Construct a graph of the field intensity E (r) on the distance r.

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Task 31364. Detailed solution shorthand terms, formulas and laws used in the decision, the withdrawal of the calculation formula and the response.
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