(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A long cylindrical shell of radius R = 12.3 cm carries a uniform surface charge 4.60E-6 C/m2. Using Gauss's law find the electrical field at a point p2 = 16.5 from the center of the cylinder.

2. Relevant equations

EA=q/epsilon0

3. The attempt at a solution

This is what I thought would work but does not produce the answer. The area is arbitrary I believe so I just used a 1m strip of the cylinder, A=2*0.123m*1m=0.246,**2. Q is found by multiplying the area of the cylinder by the charge density, Q=2*pi*r*1*(density)=3.555*10**-6 C. Solve for E, E=Q/(A*epsilon0) =0.163*10**6 N/C which is not correct. Any help would be great, especially if its before 11pm EST tonight.

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# Electric field outside a long cylindrical shell

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