Static electric field inside a dielectric medium with relative permittivity, ?r?=3.25, expressed in spherical coordinate system is given by the following expression: E=(3R3/?0?)aR? for R?1m (electrons are confined inside the sphere with radius R=1m and ?=0 outside) where aR? is the radial base vector in the spherical coordinates. If the abov solutionspile.com

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Static electric field inside a dielectric medium with relative permittivity,

?_{r} = 3.25

, expressed in spherical coordinate system is given by the following expression:

E = (3 R^{3} / ?_{0}) a_{R}

for

R ? 1 m

(electrons are confined inside the sphere with radius

R = 1 m

and

? = 0

outside) where

a_{R}

is the radial base vector in the spherical coordinates. If the above expression represents a valid electrostatic field inside the medium, then the volume charge density associated with this field in SI unit is given by: A)

4.615 R^{2}

B ) 9.231 C)

9.231 R^{2}

D) 4.615 E) 0

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