How Everything Works
How Everything Works How Everything Works

Question 863

Can we make an electric fence with no physical wire? — AW, Karachi, Pakistan
No. An electric fence needs at least one real wire. When you put a large electric charge on this wire, anyone who touches it and the ground at the same time will serve as the path through which that charge will flow into the ground. They will receive a shock. But without either the charged wire or the ground, they won't carry any electric current and they won't receive a shock.

Copyright 1997-2017 © Louis A. Bloomfield, All Rights Reserved
Privacy Policy