On Saturday, April 25, 2020 at 2:43:16 PM UTC-5, Ned Latham wrote:   
   > Just wondering, does anyone know of experiments to determine   
   > the effects on both a magnetic field detector and an electric   
   > field detector of a Van de Graaff generator both moving and   
   > stationary?   
      
   There really shouldn't be any controversy about that.  There will   
   be an electric field due to the charges on the dome and a (very   
   slight) magnetic field due to the net current running up the belt   
   into the dome.   
      
   Is there anything about this that you think might not be completely   
   understood?   
      
   Rich L.   
      
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