The volume charge density of a solid sphere of radius 0.75 m is 0.25 nCm−3 . Apply Gauss’s law to calculate the
a) electric flux through the sphere and
b) electric field at a distance of 1.5 m and at a distance of 0.50 m from the centre of the sphere, respectively. If this sphere were made of conducting material, what would the values of the electric fields be at these distances?
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