question_answer

A current loop consists of two identical semicircular parts each of radius R, one lying in the x-y plane and the other in x-z plane. If the current in the loop is i, the resultant magnetic field due to the two semicircular parts at their common centre is

A) \[\frac{{{\mu }_{0}}i}{\sqrt{2}R}\]

B) \[\frac{{{\mu }_{0}}i}{2\sqrt{2}R}\]

C) \[\frac{{{\mu }_{0}}i}{2R}\]

D) \[\frac{{{\mu }_{0}}i}{4R}\]