A radio-frequency coil has a first element and a second element both being
adjacently arranged so as to nip a division/join portion. The first
element has a first main loop portion provided along an arrangement plain
surface and a first sub-loop portion provided along a surface
substantially perpendicular to the arrangement plain surface. The second
element has a second main loop portion provided along the arrangement
plain surface and a second sub-loop portion provided facing the first
sub-loop. The first sub-loop portion and the second sub-loop portion
generate an induced electromotive force such that, among magnetic fields
generated when a current flows in one coil, a summation of the magnetic
fields, which interlink with the other coil, becomes zero.