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An infinite line charge produce a field of `7.182xx10^(8)NC^(-1)` at a distance of 2 cm. The linear charge density is

A

`7.27xx10^(-4)C//m`

B

`7.98xx10^-(4)C//m`

C

`7.11xx10^(_4)C//m`

D

`7.04xx10^(-4)C//m`

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