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A very long charged solid cylinder of ra...

A very long charged solid cylinder of radius 'a' contains a uniform charge density `rho`. Dielectirc constant of the material of the cylinder is k .What will be the magnitude of electric field at a radial distance `'x'(xlta)` from the axis of the cylinder ?

A

`rho(x)/(epsilon_(0))`

B

`rho(x)/(2kepsilon_(0))`

C

`rho(x^(2))/(2epsilon_(0))`

D

`rho(x)/(2k)`

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