An apparatus for selective heating of a biological tissue comprising a plurality of gapped toroidal solenoids having a common gap area to provide a sum of magnetic fields created by the solenoids in common localization. Each solenoid comprises a toroidally configured magnetic core and an electric coil thereupon. The coil is connectable to a generator of electric pulses. The solenoid plurality is accommodated within a housing having an opening configured for emitting solenoid electromagnetic radiation.
