A ball of radius R has a positive charge, the bulk density of which depends only on the distancer to its center as p = p0(1 – rR) where p0 is a constant. Neglecting the influence of the sphere's substance, find: a) the components of the electric field strength vector; b) the modulus of the electric field strength inside and outside the ball as a function of r; c) ball charge
A ball of radius R has a positive charge, the bulk density of which depends only on the distancer to its center as p = p0(1 – rR) where p0 is a constant. Neglecting the influence of the sphere's substance, find: a) the components of the electric field strength vector; b) the modulus of the electric field strength inside and outside the ball as a function of r; c) ball charge
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