ground loop



  • noun a sharp unplanned turn made by an aircraft that is taxiing, taking off, or landing, caused by unbalanced drag


  • A condition in which two or more points in an electrical system are each connected separately to a common ground, and are also connected via other conductors, inducing undesired circulating currents. Such a loop, for instance, can cause susceptibility to electromagnetic interference which may manifest itself as hum or other noise.