Question

An infinite long thread carries a charge uniformly spread over its length. It is bent in the form as shown. If the charge per unit length is lambda is electric field at point o is

Answer 1

Answer:

Explanation:

Hey..

Here, An infinite long thread carries a charge uniformly spread over its length.

=> Thus, Electric field because of this charge: λ/2πRε₀

=> Electric field because of Arc : - λ/2πRε₀  sin θ/2

=> effective electric field, E_eff = λ/2πRε₀ √2

=> Hence, net electric field, E_net = E_eff - E_II

= 2λ/2√2πRε₀ -  λ/2√2πRε₀

= λ/2√2πε₀R

Thus, the electric field at point o is λ/2√2πε₀R.