- #1
dragonrider
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A long non-conducting cylinder has a charge density ρ = α*r, where α = 4.95 C/m4 and r is in meters. Concentric around it is a hollow metallic cylindrical shell.
https://www.physicsforums.com/attachment.php?attachmentid=14741&d=1216404841
1. What is the electric field at 2 cm from the central axis? Assume the length L is very long compared to the diameter of the shell, and neglect edge effects. Answer in units of N/C.
- I used the Gauss' Law and derived the equation α*r3/(3*ε0). And got the answer 7.454e+07 N/C and it was right.
2. What is the electric field at 5.84 cm from the central axis? Answer in units of N/C.
- But when I use the same equation here I get the wrong answer. Can some one help me please!
4. What is the electric field at 18.4 cm from the central axis? Answer in units of N/C.
https://www.physicsforums.com/attachment.php?attachmentid=14741&d=1216404841
1. What is the electric field at 2 cm from the central axis? Assume the length L is very long compared to the diameter of the shell, and neglect edge effects. Answer in units of N/C.
- I used the Gauss' Law and derived the equation α*r3/(3*ε0). And got the answer 7.454e+07 N/C and it was right.
2. What is the electric field at 5.84 cm from the central axis? Answer in units of N/C.
- But when I use the same equation here I get the wrong answer. Can some one help me please!
4. What is the electric field at 18.4 cm from the central axis? Answer in units of N/C.