How will the conductor, carrying current `I_(0)` rotate immediately after it is released in following three cases [consider magnetic force only]
(a) Conductor carrying current `I_(0)` is placed symmetrically above poles of a fixed U shaped magnet (figure a).
(b) Conductor carrying current I0 is placed symmetrically at a distance from a fixed current `(I_(1))` carrying wire (fig. (b))
(c) An insulated circular current carrying wire is held fixed in vertical plane. Conductor carrying current `I_(0)` is in the shape of a circle of diameter nearly equal to that of the fixed insulated circle. The planes of the two circles are perpendicular to each other (fig. (c)) with xy as common diameter

Answer

(a) Conductor will rotate in Horizontal plane (b) Conductor will rotate so as to get parallel to fixed wire (c) Circular conductor will rotate so as to set the current `(I_(0))` parallel to `(I_(1))`