Hi,
I've heard that "grounded" connections in power outlets can have different voltages in different areas, for example a plug in your kitchen may be a few millivolts different from one in your bathroom, and that a "ground" plug in England may be thousands of volts different from one in, say, Japan. This, supposedly, sometimes causes problems in stadiums and other large buildings where audio systems are spread out over large areas. I imagine it would make internet transmission under oceans between continents difficult.
Is there any truth to this?
I've heard that "grounded" connections in power outlets can have different voltages in different areas, for example a plug in your kitchen may be a few millivolts different from one in your bathroom, and that a "ground" plug in England may be thousands of volts different from one in, say, Japan. This, supposedly, sometimes causes problems in stadiums and other large buildings where audio systems are spread out over large areas. I imagine it would make internet transmission under oceans between continents difficult.
Is there any truth to this?