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An infinitely long the thin strainght ...

An infinitely long the thin strainght wire has uniform charge density of `(1)/(4) xx 10^(-2) cm^(-1)` what is the magnitude of elctric field at a distance `20cm` form the axis of the wire ?

A

`9xx 10^(8) NC^(-1)`

B

`1.12 xx 10^(8) NC^(-1)`

C

`4.5 xx 10^(8) NC^(-1)`

D

`2.25xx 10^(8) NC^(-1)`

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