On Earth, electrical systems are usually "grounded," giving excess electrons a place to go. Household wiring has a "ground," literally a big metal stake pounded several yards into the ground. The stake is driven deep into Earth because, in most locations, soil is damp once you get several feet underground. Explain why damp soil helps the excess electrons move.
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On Earth, electrical systems are usually "grounded," giving excess electrons a place to go. Househol...
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