. "0"^^ . . "02750320-n"^^ . "102750320"^^ . . "astatic coils"^^ . . . . . "102654907"@en-us . . . "102218002"@en-us . "an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic field"@en-us . "astatic coils"@en-us . "0"^^ .