A positively charged, infinitely-long cylinder of radius R has a uniform charge density p(charge per volume). A student

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A Positively Charged Infinitely Long Cylinder Of Radius R Has A Uniform Charge Density P Charge Per Volume A Student 1 (73.32 KiB) Viewed 37 times

A positively charged, infinitely-long cylinder of radius R has a uniform charge density p(charge per volume). A student wishes to compute the magnitude E of the electric field at a distance r (r <R) from the center of the cylinder. The student writes down Gauss's Law A lin and sketches the centered, cylindrical Gaussian surface S shown. 18. How does the magnitude of the E-field inside the cylinder (r <R) depend on r? A) Er B) E Or? C) E 1/1 DE « 1/12 E) E is not simply proportional to a power of r