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Charge is distributed uniformly throughout the volume of an infinitely long cylinder of radius R =...

Charge is distributed uniformly throughout the volume of an infinitely long cylinder of radius R = 12 cm. The volume charge density ρ is 3.6 nC/m3. Find the magnitude of the electric field E (a) inside the cylinder, a distance r = 6.6 cm from the cylinder axis, and (b) outside the cylinder, a distance r = 24 cm from the cylinder axis.

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