Question

The length of a straight thin wire is
2cm. Its uniformly charged with a
positive charge of 3.4C. calculate
o the charge density of wire?​

Answer 1

Electric field produced by the infinite line charges at a distance d having linear charge density λ is given by the relation,

E= 2π∈ 0 dλ

λ=2π∈ 0 dE

Where,

d=2cm=0.02m

E=9×10

4 N/C∈ 0

= Permittivity of free space4π∈ 01

=9×10 9 Nm 2 C −2

λ= 2×9×10 90.02×9×10 4

=10μC/m