Question

The electric potential at the centre of two concentric half rings of radii R₁ and R₂, having same linear charge density λ is

(1) \(\frac{2\lambda}{\in_0}\)

(2) \(\frac{\lambda}{2\in_0}\)

(3) \(\frac{\lambda}{4\in_0}\)

(4) \(\frac{\lambda}{\in_0}\)

Answer 1

Correct option is (2) \(\frac{\lambda}{2\in_0}\) 

Potential at centre