A uniformly charged linear rod is placed as shown in the figure. Find the electric field intensity at point P. Given that charge density is λ C/m.
λ(b−a)4π ϵ∘ ab
λ(b2−a2)4π ϵ∘ ab
λ2π ϵ∘(b−a)ab
λ4π ϵ∘ ln (ba)
dE=k(λdx)x2E=∫dE=kλ[−1x]ba=kλ[1a−1b]=λ(b−a)4πϵ∘ ab