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## Main Question or Discussion Point

This is not a homework problem. Lets say I have an infinite charged cylinder with radius R .

And I want to find the E field inside the cylinder. If the cylinder has a line charge of T, that is charge per length. would the charge enclosed just be the ration of the areas of the smaller radius to the larger fixed radius of the cylinder.

would Q equal [itex] \frac{Tr^2}{R^2} [/itex]

And I want to find the E field inside the cylinder. If the cylinder has a line charge of T, that is charge per length. would the charge enclosed just be the ration of the areas of the smaller radius to the larger fixed radius of the cylinder.

would Q equal [itex] \frac{Tr^2}{R^2} [/itex]