Here ,
string charge density , lamda = 2.3 *10^-10 C
let the distance from the wire is d
as the electric field due to wire is given as
E = 2*k *lamda/(d)
8 = 2 * 9*10^9 * 2.3 *10^-10/d
solving for d
d = 0.5175 m
the distance from the wire is 0.5175 m
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