A semicircular ring of radius is uniformly charged with a total charge of

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A semicircular ring of radius

0.5\text{ m}

is uniformly charged with a total charge of

1.5\times10^{-9}\text{ C}

. The electric potential at the centre of the ring is: (a) 27 V (b) 13.5 V (c) 54 V (d) 45.5 V