Asked by Manny
An electric field greater than about 3×10^6V/m causes air to break down (electrons are removed from the atoms and then recombine, emitting light). If you shuffle along a carpet and then reach for a doorknob, a spark flies across a gap you estimate to be 1mm between your finger and the doorknob.
A)Estimate the voltage between your finger and the doorknob.
B) Why is no harm done?
A)Estimate the voltage between your finger and the doorknob.
B) Why is no harm done?
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