Question

Figure shows three circular arcs, each of radius R and total charge as indicated. The net electric potential at the centre of curvature is
(a) Q4π∈0R (b) Q2π∈0R (c) 2Qπ∈0R (d) Qπ∈0R

Answer 1

The answer will be (b)
V=V1+V2+V3