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- PHY102 Physics II © Dr.Cem Özdoğan
- Figure shows a section of a long, thin-walled metal tube of radius R=3.00 cm, with a charge per unit length of λ=2.00×10-8 C/m. What is the magnitude E of the electric field at radial distance (a) r = R/2.00 and (b) r=2.00R? (c) Graph E versus r for the range r=0 to 2.00R.