when magnetic filed lines cut across a conductor,a current is induced in the conductor

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when magnetic filed lines cut across a conductor,a current is induced in the conductor

当磁场线横切导体时,导体中就会产生电流

当磁场线横切一个导体,导体中就会产生电流。

当磁力线横切导体时,在导体中就产生了电流