An infinitely long conducting cylinder of radius 2 cm has a linear charge densit

Question

An infinitely long conducting cylinder of radius 2 cm has a linear charge density +3?C/m is surrounded by an insulating shell of inner radius 8 cm and outer radius 12 cm. The insulating shell has a net linear charge density of +3?C/m .

What is the area charge density for the inner cylinder?

Give your answer in ?C/m2.

An infinitely long conducting cylinder of radius 2 cm has a linear charge density +3?C/m is surrounded by an insulating shell of inner radius 8 cm and outer radius 12 cm. The insulating shell has a net linear charge density of +3?C/m . What is the area charge density for the inner cylinder? Give your answer in ?C/m2.

Explanation / Answer

from linear charge density we cab find total charge

when we have the value of charge and the surface area of cylinder we can find the value of surface charge density

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