Gauss' Law with Calculus Video Lessons

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Problem: An infinite insulating cylinder of radius R has a uniform charge density ρ (units: C/m3). What is the magnitude of the electric field at point A, which is r = R/3 from the central axis of the cylinder? A. ρR / 6ϵ0 B. ρR / 2ϵ0 C. ρR / 4ϵ0 D. 2ρR / 3ϵ0

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Problem Details

An infinite insulating cylinder of radius R has a uniform charge density ρ (units: C/m3). What is the magnitude of the electric field at point A, which is r = R/3 from the central axis of the cylinder?

A. ρR / 6ϵ0

B. ρR / 2ϵ0

C. ρR / 4ϵ0

D. 2ρR / 3ϵ0

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