<p>A line filter assembly adapted to be inserted in an electric power supply circuit of various electronic appliances for avoiding an invasion and leakage of noises comprises first and second core members each having a pair of opposite arms connected together through a common bridge. Coils are formed on the arms of each of the core members in such a manner that directions of magnetic fluxes produced in the closed magnetic circuit as a result of flow of line currents can be counteracted while the same coils are so arranged that the magnetic fluxes produced in the closed magnetic circuit as a result of the flow of the line currents can be oriented in the same direction. <IMAGE></p>
