A very long, uniformly charged cylinder has radius r and linear charge density λ.

Asked by wiki @ 25/10/2020 in Physics viewed by 318 People

A very long, uniformly charged cylinder has radius R and linear charge density λ. Find the cylinder's electric field strength outside the cylinder,
r≥R
. Give your answer as a multiple of
λ/
ε
0

Answered by wiki @ 25/10/2020

This problem is about finding the electric field that is brought about by a conducting cylinder. The working equation to be used for this phenomenon is the Gauss Law as written below:

Φ = 2EπrL = λL/ε₀

Simplifying the equation,

E = λ/2πε₀r, where r≥ R

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