Download the app

Questions  

A semicircular arc of radius ‘a’ is charged uniformly and the charge per unit length is λ .The electric field at its centre is

a
λ2πεoa2
b
λ4εoa
c
λ22πεoa
d
λ2π εoa

detailed solution

Correct option is D

dE=Kλdxa2 dEnet=Kλdxa2cosθ E=∫-π2π2Kλdθacosθ=λ2π∈0a

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

A thin glass rod is bent into a semicircle of radius r. A charge +Q is uniformly distributed along the upper half, and a charge -Q is uniformly distributed along the lower hall as shown in figure. The electric field E at P, the center of the semicircle, is


phone icon
whats app icon