Question

An infinite line charge produces a feeld
of 9×10^4 N/c at distance of 0.02m. Calculate
the linear change-density.
​

Answer 1

E=(1/4*pi*Eo)*2y/d

y=linear charge density

Eo=permittivity of free space

by substituting values,

9*10^4=9*10^9*2y/0.02

y=10^-7 c/m