An infinite line charge produces a field of `9 xx 10^4` N/c at a distance of 2 cm. Calculate the linear charge density.

Explanation

Here, `E=9xx10^(4)"N/C",r=2" cm"=2xx10^(-2)m`
`lamda=?`
As, `E=(lamda)/(2pi epsilon_(0)r)`
`rArr" "lamda=2pi epsilon_(0)rE=(1)/(2xx9xx10^(9))xx2xx10^(-2)xx9xx10^(4)`
`:." "lamda=10^(-7)" Cm"^(-1)`